TS EAMCET · Maths · Binomial Theorem
If the term in the expansion of is , then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Given, The 4th term in the expansion of x2-2y36 is -20, So, T4=-13×C36x23×2y33 ⇒-20=-20x23×2y33 ⇒x38×8y327=1 ⇒x3×y3=27 ⇒xy=3
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