(1-cot^(2)45)/(1+sin^(2)90)

The value of (sec^(2)45^@-cot^(2)45^@)-(sin^(2)30^@+sin^(2) 60^(@)) is

(1-tan^(2)45)(1+tan^(2)45)= a) tan90^0 b)1 c) sin45^0 d)0

Calculate : sec^(2)45^(@)-cot^(2)45^(@)-sin^(2)30^(@)-sin^(2)60^(@) .

The value of (sec^(2)45^(@)-cot^(2)45^(@))-(sin^(2)30^(@)+sin^(2)60^(@)) is

Evaluate each of the following : (4)/(cot^(2)30)+(1)/(sin^(2)30^(@))-2cos^(2)45^(@)-sin^(2)30^(@)

(1-tan^(2)45o)/(1+tan^(2)45o) is equal to tan90o(b)1(c)sin450(d)sin0o

Evaluate each of the following :- 4/(cot^(2)30^(@))+1/(sin^(2)60^(@))-cos^(2)45^(@)

(1 - cot^(2)45^(@))/(1 + cot^(2)45^(@)) =

(1 - cot^(2)45^(@))/(1 + cot^(2)45^(@)) =

Calculate : (1-sin^(2)30^(@))/(1+sin^(2)30^(@))xx(cos^(2)60^(@)+cos^(2)30^(@))/("cosec"^(2)90^(@)-cot^(2)90^(@)) divide (sin60^(@) tan30^(@))