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उदाहरण 26. यदि x + y =9 और xy = 20 हो, तो x2 + y का मानज्ञात कीजिए। |
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Answer» 41 is corect answee.... x+y=9xy=20so. x=9-y(9-y)y=209y -y^2=20solving eqn, we getx=5 and y=4,or x=4and y=5 value of x is =5 & value of y= 4 Hence 25+16=41. x=5.y=4.or x=4.y=5 solving x^2+y^2= 77 is the correct answer this question x^2 +y^2 =41 is the correct answer 4 is the correct answer x²+y²= 41 this is the correct answer let assume x=5. y=4 then 5+4=9. ®5*4=20. ®5*5+4*4= 41answer x=5,y=4then5+4=95×4=205×5+4×5=41 X=5,y=4 5+4=95✖4=205✖5➕4✖5=41 value of x is 5 or value of y is 4 and answer is 41 put value of x=5&y=4x+y=5+4=9xy=5×4=20 hence,x^2+y^2=5^2+4^2=25+16=41 41 is right answer hai x 4 y 5corrects naswer x+y=9. xy=20 x2+y2 = 81-40=41 x+y=9 squaring on both sides answer 45 is the right answer right answer is 16+25=41 question answer is 41 according to the maths it's answer must be 41 🇹🇯🇹🇯🇹🇯🇹🇯🇹🇯🇹🇯📑25 +16=41✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓ x=5 & y=4 Eaka answer fourty one hai Given that, x+y=9xy=20(x+y)²=81Again , (X +y) ²=x²+Y²+2xy =81=x²+y²+40 =81-40=x²+y² = 41=x²+y²(x-y) ²=x²+y²-2xy(x-y) ²=41-40=1x-y=1x+y+x-y =9+1=10=2x=10=x=5Again, x+y-(x-y) =9-1 =2y=8 =y=4 ×=5 & y=4 is right answer (x+y=9,xy=20,) based on this (x×x+y×y= 41) right the correct answer 41 41 is the correct answer ..... 41 is the correct answer. 41 If xy=20,Find. x^+y^=?..... 1Then x =20/yPut the value of x =20/y in equation 1=(20/y) ^+( y) ^=400/y^+y^ x^2+y^2= 41 is correct answer 41is right answer 😋😋 Given, x+y=9x. y=20x²+y²=? Now, We know that, (x+y) ²= x²+y²+2xyx²+y² = (x+y)² -2xy = (9)² - 2×20 = 81-40 = 41 41 is the answer for this question 41 is correct answer |
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