" 13.) "tan^(2)x+cot^(2)x=2

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If tan^(2)x + cot^(2) x = 2 , then x =

int(tan^(2)x-cot^(2)x)dx=

Solve the equation :tan^(2)x+cot^(2)x=2

The least value of tan^(2)x+cot^(2)x is :

int (tan^2x+cot^2x)dx

cot^(2) x + tan^(2) x

int_(0)^(pi/2)(cot^(2)xdx)/(tan^(2)x+cot^(2)x)

tan^(2)2x + cot^(2)2x + 2tan 2x + 2 cot 2x=6

Evaluate int_(0)^((pi)/(2))(tan^(2)x)/(tan^(2)x+cot^(2)x)dx

The expression (1+tan x+tan^(2)x)(1-cot x+cot^(2)x) has the positive values for x, given by