1.

If 2 sin 0 - 1 = 0, find :(i) the value of 0 in degrees, where is an acuangle ;(ii) cos 0 + tan’ .​

Answer»

ANSWER:

Step-by-step explanation:

GIVEN : 2 sinA - 1 = 0.

⇒ 2 sin A = 1

⇒ sin A = 1/2

⇒ sin A = sin 30

⇒ A = 30.

Here, A is an ACUTE angle.

Now,

(ii)

⇒ Sin A = sin 30

            = 1/2.


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