# Theta cos theta sin theta

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if sin theta =cos theta ,find the value of theta and tan theta. Ask questions, doubts, problems and we will help you. 2015-06-12 As sin^2 theta = 1 - cos^2 theta = 1- (7/25)^2 =1-49/625 =(625-49)/625 ⇒ sin^2 theta = 576/625 ⇒ sintheta = sqrt(576/625) ⇒sin theta = 24/25 Now , tan theta + cot theta  =sin theta / cos theta+ cos theta /sin theta =(sin^2 Y = cos theta + 2sin theta. Share with your friends. Share 15. I f y = 3 cos θ + 2 sin θ i 2 s q u a r i n g a n d a d d i n g a b o v e b o t h e q u a t i o n s, w e h a v e, x 2 + y 2 = 2 cos θ-3 sin θ 2 + 3 cos θ + 2 sin θ 2 ⇒ x 2 + y 2 = 4 cos 2 θ + 9 sin 2 θ-12 sin θ cos PROVE THAT (sin theta + sec theta)^2 + (cos theta + cosec theta)^2 = (1+ sec theta cosec theta)^2 - Math - Introduction to Trigonometry The functions sine, cosine and tangent of an angle are sometimes referred to as the primary or basic trigonometric functions. Their usual abbreviations are sin(θ), cos(θ) and tan(θ), respectively, where θ denotes the angle.