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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.
| 7451. |
Prove that. 3-(9/4)+(27/16)-(81/64)........ infinity=12/7 |
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| 7452. |
In any triangle ABC, prove that [{(a-b)^2}(cos^2)c/2]+[{(a+b)^2}(sin^2)c/2] |
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| 7453. |
how many three digit number are there, with no digit repeated |
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Answer» Same... Hat\'s of you himanshu tiwari ?? Any 3-digit number (abc)10 with no repeated digit can be chosen in 9⋅9⋅8=648 ways. 648.Here is a complete list of them:[102, 103, 104, 105, 106, 107, 108, 109, 120, 123, 124, 125, 126, 127, 128, 129, 130, 132, 134, 135, 136, 137, 138, 139, 140, 142, 143, 145, 146, 147, 148, 149, 150, 152, 153, 154, 156, 157, 158, 159, 160, 162, 163, 164, 165, 167, 168, 169, 170, 172, 173, 174, 175, 176, 178, 179, 180, 182, 183, 184, 185, 186, 187, 189, 190, 192, 193, 194, 195, 196, 197, 198, 201, 203, 204, 205, 206, 207, 208, 209, 210, 213, 214, 215, 216, 217, 218, 219, 230, 231, 234, 235, 236, 237, 238, 239, 240, 241, 243, 245, 246, 247, 248, 249, 250, 251, 253, 254, 256, 257, 258, 259, 260, 261, 263, 264, 265, 267, 268, 269, 270, 271, 273, 274, 275, 276, 278, 279, 280, 281, 283, 284, 285, 286, 287, 289, 290, 291, 293, 294, 295, 296, 297, 298, 301, 302, 304, 305, 306, 307, 308, 309, 310, 312, 314, 315, 316, 317, 318, 319, 320, 321, 324, 325, 326, 327, 328, 329, 340, 341, 342, 345, 346, 347, 348, 349, 350, 351, 352, 354, 356, 357, 358, 359, 360, 361, 362, 364, 365, 367, 368, 369, 370, 371, 372, 374, 375, 376, 378, 379, 380, 381, 382, 384, 385, 386, 387, 389, 390, 391, 392, 394, 395, 396, 397, 398, 401, 402, 403, 405, 406, 407, 408, 409, 410, 412, 413, 415, 416, 417, 418, 419, 420, 421, 423, and many more |
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| 7454. |
What is important in mathematical reasoning ? |
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| 7455. |
Marks of each chapter in final exam. |
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| 7456. |
Solve x=logx and x=-logx |
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| 7457. |
Sinq+cosp÷cotp |
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| 7458. |
-8-6i square root |
| Answer» ±(3-i) | |
| 7459. |
Differentiate cosx/1+sinx with respect to x |
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| 7460. |
11/16 |
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| 7461. |
derivative of e®sin2x |
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| 7462. |
n(n+1) (n+5) is a multiple of 3 |
| Answer» for P(1)= 1 2×6=12 which is multiple of 3 It is true then For P(K) = K(k+1) (k+5)=(k2+k) (k+5)=k3+5k2+k2+5kk3+6k2+5k =3m (where m is an integer)k3= 3m-6k2-5kNow for P(k+1)= K+1(k+2)(k+6)=on multiplying we getk3+9k2+20k+12put k3= 3m-6k2-5k3m-6k2-5k+9k2+20k+123(m-k2+5k+4) Hence P(k+1) is true And where n ~ natural no. | |
| 7463. |
1+3+6+10+............+n terms |
| Answer» Prove | |
| 7464. |
1+3+6+10+.................+n terms =n(n+1)(n+2)/6 |
| Answer» Prove | |
| 7465. |
In the expansion of (1+a)^m+n,prove that coefficients of a^m and a^n are equal. |
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| 7466. |
For which value of Kapil line 3x - 4y = k touches ellipse 5xpower2 +4x power 2 =20? |
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| 7467. |
3-3 |
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| 7468. |
Sin(y+z-x |
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| 7469. |
evaluate lim ->x->0(underroot1+3x-underroot 1-3x/x |
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| 7470. |
Prove that the value of 5 cos theta+3cos(theta+pai/3)+3 lies between -4and 10 |
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| 7471. |
What is the domain and range of f(x)=root(5-x sq.) |
| Answer» Domain = [-5,5]Range = [0,infinity) | |
| 7472. |
The measure of angel of triangle are in the ratio 2:3:5 find their measures in radians |
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| 7473. |
-8+6¡ |
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| 7474. |
Derivative of xtanx by first principle |
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| 7475. |
Marking scheme chapterwise |
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Answer» No particular pattern. All chapters are important. Marking scheme is according to your school teacher? |
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| 7476. |
General solution of sinx=1÷2 |
| Answer» x=npi +(-1)^n pi÷6,n €ZAnd, x=npi +(-1)^n 5pi÷6 n €Z | |
| 7477. |
2×2355678901 |
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| 7478. |
Factors of 2 |
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| 7479. |
If sin(a+b)=1 and sin(a-b)=1/2 find tan(a+2b) |
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| 7480. |
Cungb |
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| 7481. |
If f(x+3)=x^2-1 then find f(x) |
| Answer» Please help | |
| 7482. |
What is the diffetence between relation and functions |
| Answer» Relation are those which shows the relationship between 2or more than two things. Function are those which shows that how they are in relationl and what function they are prfoming . | |
| 7483. |
Find the equation of the parabola whose focus is ( 5,2 ) and the vertex at ( 3,2 )? |
| Answer» OK then who come first a hen or a egg. And please give me answer. | |
| 7484. |
I am having commerce with maths and i want to drop maths in 12th. Is it possible? |
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Answer» Yes u r ryt bhavya it is very helpful in future also which line u want to choose in future Yes it is possible ... But I suggest you to not drop it because it will be helpful in future |
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| 7485. |
Tan10°+tan15°=4 |
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| 7486. |
Cosec[-1410degree] value find but its value change |
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| 7487. |
how marks obtained in both terms for passing in math? |
| Answer» Only final exam result is consulted | |
| 7488. |
If pth qth rth &sth term of ap AP are in GP then show that (p-q) (q-r) (r-s) are also in GP |
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| 7489. |
-15-8i |
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| 7490. |
Write the set 3/5,3/7, 5/9,7/11,9/13 in set builder form |
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Answer» Same here. I was going to say Not possible |
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| 7491. |
Write the number of element of power set of a if a={a,b,c} |
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| 7492. |
Proove that : √3cosec20°-sec20°=4 |
| Answer» firstly divide 2 on both साइड एंड चेंजिंग cosec sec into sin cos | |
| 7493. |
Find the domain and range of the function f(x), f(x) = - |x| |
| Answer» Domain all real noRange is negative real no | |
| 7494. |
Determine the values of a and b so that the points (a,b,3),(2,0,-1) and (1,-1,-3) are collinear. |
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| 7495. |
Aara koe insta pe hai to follow kro _._saransh_._ follow back maar dunga |
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| 7496. |
1*5*3*5+44+4*5+5*9-88/11= |
| Answer» 176 | |
| 7497. |
Find domain and range for f(x)=square root of x-1 |
| Answer» Let f(x) =√x-1 Then, f is defined when x-1>=0= x>=1. So , domain is [1, infinity)For range, let f(x) = yThen , y=√x-1= y^2+1 = xThen x is defined when y is any real no.So, range of f(x) is R (real no.) | |
| 7498. |
How to find value of sin 18 |
| Answer» Thos how know tell Mee also | |
| 7499. |
Tanki (_945°) |
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| 7500. |
Prove thattanxtan(x+60)+tan(x+60)tan(x-60)+tanxtan(x-60)=-3 |
| Answer» Tan(A-B) =TanA-TanB/(1+TanATanB) => TanATanB+1=(TanA-TanB)/Tan(A-B)SoTanxTan(60+x)+1 ={Tan(60+x)-Tan60}/Tan60 -----1Tanxtan(x-60)+1= {Tanx- Tan(60-x)}/tan60---------2Tan(x+60)tan(x-60)+1 ={tan(60+x)-tan(x-60)}/tan120--------3Adding 1,2 and 3we get TanxTan(60+x)+1+Tanxtan(x-60)+1+Tan(x+60)tan(x-60)+1=0soTanx tan(x+60)+tanx tan(x-60)+tan(x+60) tan(x-60)=-3 | |