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Class 9 RD Sharma book chapter 4 exercise 4.4 question 2 solution |
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Answer» Answer: (i) (9y2 – 4X2)(81y4 + 36x2y2 + 16x4) = (9y2 – 4x2) [(9y2 ) 2 + 9y2 x 4x2 + (4x2) 2 ] = (9y2 ) 3 – (4x2)3 = 729 Y6 – 64 x6 Put x = 3 and y = -1 = 729 – 46656 = – 45927 (ii) Put x = 3 and y = -1 (3/x – x/3)(x2 /9 + 9/x2 + 1) RD sharma class 9 MATHS chapter 4 ex 4.4 question 2 solution part 2 (iii) Put x = 3 and y = -1 (x/7 + y/3)(x2/49 + y2/9 – xy/21) RD sharma class 9 maths chapter 4 ex 4.4 question 2 solution part 3 (iv) Put x = 3 and y = -1 (x/4 – y/3)(x2/16 + xy/12 + y2/9) RD sharma class 9 maths chapter 4 ex 4.4 question 2 solution part 4 (v) Put x = 3 and y = -1 (5/x + 5x)(25/x2 – 25 + 25x2). Please MARK as BRAINLLIST answer and follow me
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