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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 2601. |
Sinx/cos3x+sin3x/cos9x+sin9x+cos27x=1/2(tan27x-tanx) |
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| 2602. |
aCosA+bCosB+cCosC=2aSinB.SinC |
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| 2603. |
What is the real value of a for which 3i^3-2ai^2 |
| Answer» 2a | |
| 2604. |
If x +iy = 4+iv/4-iv |
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| 2605. |
Trigonometric kai Sarai formula |
| Answer» Available in this app...... And book also | |
| 2606. |
3^(2n+2)-8n-9 is divisible by 8 (PMI)? |
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| 2607. |
Differentiate tan√x wrt. \'X\' |
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| 2608. |
How to get pass marks for final exams help plzzz |
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Answer» Focus on more weightage chapters.. Solve last 10 years board exam paper |
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| 2609. |
Square root of -15-8i |
| Answer» - 4.12701665 i | |
| 2610. |
Plz tell the important chapters and question of mathematics for school examination |
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| 2611. |
Cos^3A +cos^3(120°+A)+ cos^3(240°+A)= 3/4 cos3A |
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| 2612. |
Lim x-2 [x^3-4x^2+4x/x^2-4] |
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| 2613. |
Tan 4x=4tanx(1-tansqx)divided by 1-6tansqx+tanpower4x |
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Answer» tan 4x=tan3x+x Tan2(2x) (2tanx2x)/1-tan^2x Similarly open tan2x again and solve |
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| 2614. |
How to find general solution of trigonometry identity |
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| 2615. |
Please 1nce explain me inclusive & exclusive statements |
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Answer» Sorry according to mathematical reasoning Sorry!According Mathematical Modelling Chapter If A intersection B is equal to fi then A and B are mutually exclusive events |
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| 2616. |
Find the slope of the line y=-5? |
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Answer» Equation of line 0x + y +5 =0 Slope = - A/B = - 0/1 =0 Answer:The line y=−5 has a slope of m=0 Explanation:The line y=−5 has a slope of m=0 The line is a horizontal line through y at −5 This line has no rise or Δy=0 But how please explain 0 |
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| 2617. |
What is the value of tan 13π/3? |
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Answer» I\'m not getting please 1nce again explain me! Please please friends Mean root 3 Tan(4pie+pie/3)Tan(pie/3)Root6 Tan(π+π/12);Tan π/12;Tan(π/4-π/6);(Tanπ/4-Tanπ/6)/1+tanπ/4×tanπ6;(1-1/3^1/2)/1+1/3^1/2;=2-√3 |
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| 2618. |
Additive inverse |
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| 2619. |
How many chords can be drawn through 21 points on a circle |
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| 2620. |
Yesterday is my maths exam I m very scarring for this God knows what will happen |
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Answer» I know but I realize after sending Mera bhi kal Maths exam hai....I m too nervous? BTW.... Same here Tomorrow not yesterday |
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| 2621. |
Find the 6th term in the expansions of (2x-y)whole squar |
| Answer» I think question is wrong coz the possibile terms in the expansion is 3. So, how can we find 6th term | |
| 2622. |
7.5 2n-1 +2 3n-1 is divisible by 17 for every natural number n >=1 |
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| 2623. |
f(x)=x-1/x+1 then prove that f(2x)=3f(x)+3/f(x)+3 |
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| 2624. |
Write the value of 1000c1 |
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| 2625. |
If f(x+1/x)=x^2+1/x^2 then find f(x) |
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| 2626. |
Write the value of sin(pi/12).sin(5pi/12) |
| Answer» 1 | |
| 2627. |
Sec2A +cosec2A>_4 |
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| 2628. |
co^2+c1^2+c2^2.....+cn^2 = 2n!/(n!)^2 |
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| 2629. |
2#2 |
| Answer» ? | |
| 2630. |
Limit tending to o tanX upon sin 3x |
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Answer» Divide numerator and denominator by x ,Then ==> limit x->0 tanx/x/sin3x/x==> lim x->0 1/sin3x/x (lim y-->0 tany/y=1)Now multiply and divide denominator by 3==> lim x->0 1/sin3x*3/x*3==> lim x->0 1/1*3 (lim y-->0 siny/y=1)==> 1/3I hope, this will help you. 1/3 |
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| 2631. |
tanx+2tan2x+4tan4x+8cot8x=cotx |
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Answer» Wel explained answer.. thanks First, its important to find the value of tan x – cot x. So, tan x – cot x = tan x - 1/tan x = tan² x-1/tan x = -2 (1-tan² x/ 2tan x) = -2 ( 1/2tan x ÷ 1- tan² x) = -2× 1/tan² x = 2cot 2x ....(1) . Now— tan x + 2 tan 2x + 4 tan 4x + 8 cot 8x = tan x – cot x + 2 tan 2x + 4 tan 4x + 8 cot 8x + cot x= –2 cot 2x + 2 tan 2x + 4 tan 4x + 8 cot 8x + cot x = 2 (tan 2x – cot 2x) + 4 tan 4x + 8 cot 8x + cot x= 2 (– 2 cot 4x) + 4 tan 4x + 8 cot 8x + cot x= 4 (tan 4x – cot 4x) + 8 cot 8x + cot x= 4 (– 2 cot 8x) + 8 cot 8x + cot x= – 8 cot 8x + 8 cot 8x + cot x= cot x . Hence, tan x + 2 tan 2x + 4 tan 4x + 8 cot 8x = cot x |
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| 2632. |
Find square root of -15-8i |
| Answer» Let the sq. root of √ -15-8i=+-(x+iy)On Sq. both sides we get, -15-8i=x^2+(yi)^2+2xyi-15-8i=^2-y^2+2xyi (i^2=-1)on comparing, we get, =x^2-y^2=-15 ........(1)2xy=8We know that (x^2+y^2)^2=(x^2-y^2)^2+(2xy) ^2On putting the values, we get (x^2+y^2)^2=(-15)^2+(8)^2=279(x^2+y^2)=17 .........(2)On solving (1)and(2),we get X=+-(1),y=+-(4)Hence, √-15-8i=+-(1+4i) | |
| 2633. |
Har ek chapter se kitne marks ka aayega? pls batao koi !! |
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Answer» Sb me thoda pr trigo 7, 8 and 14 is most important 1 to 27 |
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| 2634. |
Sample space |
| Answer» The total no. Of event can happen. | |
| 2635. |
if |x| |
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| 2636. |
Derive the value of sin18 |
| Answer» Let A = 18. Then Sin 5A=1 which means that sin (2A+3A)=1. Put the formula and solve | |
| 2637. |
Find the range of f(x):1+3cos2x |
| Answer» Range=[0,4] | |
| 2638. |
Give me some quick tips for maths exam because I have only three days left for it.. |
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Answer» Practice the most waitage chapters and attempt every question in exam Work hard , there will be no need for cheating . To remember the alll concepts |
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| 2639. |
Find the length of an arc of a circle of radius 3cm. If the angle subtended at the centre is 30° |
| Answer» 0.1 cm | |
| 2640. |
solve for x √3cosx-sinx=1 |
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| 2641. |
100 marks main se ncert se kitne no ka aayega |
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Answer» 85% Almost 90% above because class 11th everything but it differ from subject to subject 70 Almost 80%+ 65-70% |
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| 2642. |
Tan 15 +cot 15=4 |
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| 2643. |
Guys how many of u r preparing for NDA |
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Answer» What do u want Yes i know Have you any knowledge about its procedure ? Me |
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| 2644. |
If nc1o=nc3,find nc3 |
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Answer» Thanks n=13 [nCr=nCr+1 then n=r+r+1]Here nC3=10C3 |
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| 2645. |
Kya agar m sample paper ke question solve krunga to m pass ho jaunga? |
| Answer» Haaa of course par zyada sample paper solve krna pdega | |
| 2646. |
Find the sum of 5+ 5²+5³+5⁴...... |
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| 2647. |
Find the 11th term from the end in the expansion of (2x-1/x^2)^25 |
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| 2648. |
What are the most important questions? |
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Answer» All nceart q Sab |
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| 2649. |
solve by completing the square method 5x2-6x-2 |
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| 2650. |
Plz tell the most important questions or chapters. ? |
| Answer» 10 is most important | |