" 37."cosec(65^(@)+theta)-sec(25^(@)-theta)

What is the value of cosec (65^(@) + theta) - sec(25^(@) - theta) + tan^(2) 20^(@) - cosec^(2) 70^(@) ?

Prove that (i) sin(40^(@)-theta)-cos(50^(@)+theta)=0 (ii) sec(65^(@)+theta)-"cosec"(25^(@)-theta)=0

The value of cosec(70^(@)+theta)-sec(20^(@)-theta)+tan(65^(@)+theta)-cot(25^(@)-theta) is……………..

What is the value of cosec(65^@ + theta) - sec (25^@ -theta) + tan^2 20^@ - cosec^2 70^@ ?

What is the value of cosec(65^@+theta) -sec(25^@-theta)+tan^2 20^@- cosec^2 70^@ ? cosec(65^@+theta) -sec(25^@-theta)+tan^2 20^@- cosec^2 70^@ का मान क्या है ?

Prove that: cosec (65° + theta) - sec (25° - theta) - tan (55° - theta) + cot (35° + theta) = 0 .

Evaluate : ( 1 ) cosec (65° +theta) -sec (25° - theta) - tan (55° + theta) + cot (35° - theta) (2) (3cos55^(@))/(7sin35^(@))-(4(cos70^(@)cosec20^(@)))/(7(tan5^(@)tan25^(@)tan45^(@)tan65^(@)tan85^(@)))

Without using trigonometric table, the value of cotthetatan(90^(@)-theta)-sec(90^(@)-theta)"cosec"theta+sin^(2)65^(@)+sin^(2)25^(@)+sqrt3tan5^(@)tan85^(@) .

If tan theta =(1)/(sqrt(7)) and theta is an acute angle , then ("cosec"^(2) theta - sec^(2) theta )/( "cosec"^(2) theta + sec^(2) theta =