" If "quad " If "tan A=2," evaluate "sec A*sin A+tan^(2)A-cosec^(2)A

If tan A=2, evaluate sec A sin A+tan^(2)A-cos ecA

If sin A= 1/3 evaluate cos A cosec A + tan A sec A

If sin A = 1/3 evaluate the cos A cosec A + tan A sec A.

If alpha is in Ist quadrant such that sec^(2)alpha=3 , then (tan^(2)alpha-cosec^(2)alpha)/(tan^(2)alpha+cosec^(2)alpha)=?

From the following figure, find the values of : (i) cos A (ii) cosec A (iii) tan^(2)A - sec^(2)A (iv) sin C (v) sec C (vi) cot^(2) C - (1)/(sin^(2)C)

Prove that : (sin A - cos A) (1 + tan A + cot A) = (sec A)/ (cosec^(2) A) - (cosec A)/ (sec^(2) A)

(sin A+cosec A)^(2)+(cos A+sec A)^(2)=7+tan^(2)A+cot^(2)A

If tan(x/2)=cosec x-sin x" then (1+sec^(2)(x)/(2))^(2)=

If tan a=2/sqrt13 , then the value of (cosec^2 a+2sec^2 a)/(cosec^2 a-3 sec^2 a) is : यदि tan a=2/sqrt13 ,है, तो (cosec^2 a+2sec^2 a)/(cosec^2 a-3 sec^2 a) का मान: