Question

prove it fast please​

Answer 1

Step-by-step explanation:

Given tan a +cot a =2

so tan^7a + cot^7 a=

{[( tan a+ cot a)^2]^2}^3. ( by using [(a)^m]^n=a^m+n)

(2)^2]^2}^3

=16 x 16 x 16=4096

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