1.

If 2 sin x° -10 and x is an acute angle; find:(i) sin x° (ii) x (ii) cos x° and tan °(iii) cos x' and tan xoii)x°

Answer»

Given : x is acute angle2sin(x) - 1 = 0

sinx = 1/2

ii) x = 30° as sin(30°) = 1/2

iii) cos(30°) = √3/2 and tan(30°) = 1/(√3)



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