1.

If sin θ=35 and cos ϕ=−1213 where θand ϕ both lie in the second quadrant, find the values of (i) sin (θ−ϕ), (ii) cos (θ+ϕ), (iii) tan (θ−ϕ).

Answer»

If sin θ=35 and cos ϕ=1213 where θand ϕ both lie in the second quadrant, find the values of

(i) sin (θϕ), (ii) cos (θ+ϕ), (iii) tan (θϕ).



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