If `sin theta=3/5 ` then `cos theta` will be

If theta is in 1st quadrant, sin theta=3/5 , then cos theta =? .

If 180^(@) lt theta lt 270^(@) , sin theta =-3//5 , then cos theta //2=

I : If 180^(@) lt theta lt 270^@ , sin theta = -3//5 " then " cos theta //2 -=1//10 . II : If 630^(@) lt theta lt 720^(@) , |tan theta | =12//5 " then " tan theta//2= 2//3

If 3 sin theta + 5 cos theta = 5 , then the value of 5 sin theta - 3 cos theta will be-

If sin theta=(3)/(5), evaluate (cos theta-(1)/(tan theta))/(2cot theta)

If sin theta - cos theta = 3/5, sin theta cos theta = __________

If Sin theta = 4/5 and Cos theta=3/5 find the value of Sin^(2)theta+Cos^(2) theta

Prove that : (sin 5theta + sin 3theta)/(cos 5theta + cos 3theta) = tan 4theta

Prove that : (sin theta + sin 3theta + sin 5theta)/(cos theta + cos 3theta + cos 5theta) = tan 3theta