ASSIGNMENT 5.41. Multiple Choice Questions (MCQ)Choose the correctopti

1.	ASSIGNMENT 5.41. Multiple Choice Questions (MCQ)Choose the correctopti(i) The product of (x + y), (x -y) and (r2 + y2) is(a) x2-y2(b) 4 +y4(c) x4 -y4
Answer» (x+y)(x-y)(x²+y²)=(x²-y²)(x²+y²)=x⁴-y⁴Ans:c (x+y)(x-y) =(x²-y²) by formula (a+b)(a-b) =(a²-b²)so'(x²-y²)(x²+y²)by same formula (c) is ans.

ASSIGNMENT 5.41. Multiple Choice Questions (MCQ)Choose the correctopti(i) The product of (x + y), (x -y) and (r2 + y2) is(a) x2-y2(b) 4 +y4(c) x4 -y4

Answer»

(x+y)(x-y)(x²+y²)=(x²-y²)(x²+y²)=x⁴-y⁴Ans:c

(x+y)(x-y) =(x²-y²) by formula (a+b)(a-b) =(a²-b²)so'(x²-y²)(x²+y²)by same formula (c) is ans.