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Coordinates of a Point in Space

What is the v...

Question

What is the value of cos x in second quadrant if sin x = 3/5 in II quadrant

– 5/4

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Solution

The correct option is D
– 4/5

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Similar questions

sin \frac{x}{2}, cos \frac{x}{2} a n d tan \frac{x}{2}

tan x = - \frac{4}{3},

I I

cos x = - \frac{1}{3}

I I I

Prove that:

(i) If $c o s x = - \frac{3}{5}$ and x lies in the IIIrd quadrant, find the values of $c o s \frac{x}{2}, s i n \frac{x}{2}$ and sin 2x.

(ii) If $c o s x = - \frac{3}{5}$ and x lies in the IInd quadrant, find the values of sin 2x and sin $\frac{x}{2}$

sin x = \frac{3}{5}

cos y = \frac{12}{13}

sin (x + y)

sin x = \frac{3}{5}, cos y = - \frac{12}{13}

sin (x + y) .

sin \frac{x}{2}, cos \frac{x}{2} a n d tan \frac{x}{2}

tan x = - \frac{4}{3}, x

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