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3("sin" x-"cos" x)^4 +6("sin" x +"cos" x...

`3("sin" x-"cos" x)^4 +6("sin" x +"cos" x)^2 +4("sin"^6x+"cos"^6 x)` is equal to

A

12

B

13

C

14

D

11

Text Solution

Verified by Experts

The correct Answer is:
B
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