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The third proportional of the following numbers (x – y)², (x² – y²)² is :
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- (x + y)³ (x – y)²
- (x + y)4 (x – y)²
- (x + y)² (x – y)²
- (x + y)² (x–y)³
Correct Option: B
If c be the third proportional between a and b, then
| = | ||
| b | c |
| ⇒ a³ + | + 3 × 3 = 27 | |
| a³ |
| ⇒ c = | = | ||
| a | (x - y)² |
| = | |
| (x - y)² |
= (x + y)4 (x – y)²
