If `cos theta = −3/5 and 180^@ < theta < 270^@` then `(tan theta)/2`​

Find the other five trigonometric ratio if cos theta=- 4/5 , 90^@ lt theta lt 180^@ .

If 5 cot theta = 3 ," find the value of "((5sin theta - 3 cos theta )/(4 sin theta + 3 cos theta)).

Find the values of theta betwen 0^(@) and 180^(@) satisying the equation cos6 theta+cos4 theta+cos2 theta+1=0

If 3 cot theta = 4 , find the value of (5 sin theta - 3 cos theta)/(5 sin theta + 3 cos theta) .

If cos 5theta=a cos theta + b cos^(3)theta+c cos^(5) theta+d , then

If 3cos theta=5sin theta, then find the value of 5sin theta-2sec^(3)theta+2cos theta5sin theta+2sec^(3)theta-2cos theta