Home sin 90 Prove that:sin(90+theta )=costheta $ 12.99 5 (184) In stock Description Click here:point_up_2:to get an answer to your question :writing_hand:prove thatsin90theta costheta Click here👆to get an answer to your question ✍️ Prove that-sin-90-theta -costhetaProve that:sin(90+theta )=costheta