Question

find the value of sin x cos x and tan x in the following cases x = 135° x =120° x =225°

Answer 1

hope this will help u

Answer 2

value of sin x if x =135°
we can write sin(135°) as sin(90°+45°)
so sin 90°+sin 45°=
$1 + \frac{1}{ \sqrt{2} }$
you can take 120° as 90°+30°,225 as 90°+45°+90°

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