`sec^2(tan^(01)2)+cos e c^2(cot^(-1)3)` is equal to 5 (b) 13 (c) 15 (d) 6

Prove that sec^(2)(tan^(-1)2)+cos ec^(2)(cot^(-1)3)=15

The value of sec^2("tan"^(-1)3)+""cos"ec"^2(cot^(-1)2) is equal to

sec ^ (2) (tan ^ (- 1) 2) + cos ^ ee (2) (cot ^ (- 1) 3) = 15

The value of 2tan^(-1)(cos ec tan^(-1)x-tan cot^(-1)x) is equal to (a)cot ^(-1)x( b ) (cot^(-1)1)/(x) (c)tan ^(-1)x (d) none of these

Prove that: sec^(2)(tan^(-1)2)+cos ec^(2)(cot^(-1)3)=15 and tan^(2)(sec^(-1)2)+cot^(2)(cos ec^(-1)3)=11

5 tan^2 A -5sec^2 A+1 is equal to (a) 6 (b) -5 (c) 1 (d) -4

tan^(-1)sqrt(3)-sec^(-1)(-2) is equal to (a) (B) (B) (C) (D) quad (2 pi)/(3)

In triangle ABC, if sin A cos B=(1)/(4) and 3tan A=tan B, then cot ^(2)A is equal to (a)2 (b) 3 (c) 4 (d) 5 .

If 5tan theta=4, then (5sin theta-3cos theta)/(5sin theta+2cos theta) is equal to 0 (b) 1 (c) (1)/(6)(d)6

(1+tan^(2)A)/(1+cot^(2)A) is equal to sec^(2)A(b)-1(c)cot^(2)A(d)tan^(2)A