Question

If tanA+1/tanA=2 then
(A)tan^2A+(1/tan^2A)=2
(B)tan^3A+(1/tan^3A)=2
(C)tan^4A+(1/tan^4A)=8
(D)tan^n+(1/tan^nA)=2
note: this is a multi answer question​

Answer 1

Step-by-step explanation:

tan A + 1 / tan A = 2

tan A + cot A = 2

this possible when A = 45

A) is true

tan ^2 A + 1 /tan^2 A

tan ^ 2 45 + 1 / tan ^2 45

1 +1 = 2

option B) is true

tan ^3 A + 1/ tan^3 A

= tan ^3 45 + 1 / tan^3 45

= 2

option C ) is false (as it is option A and B)

option D) is true ( as it is option A and B)