Question

If cos theta =1/2 and sin phi=1/2, both theta and phi are acute angles , then the value of theta + phi is (a)90 degree (b) 60 degree (c) 30 degree (d) 120 degree

Answer 1

Step-by-step explanation:

cos theta=1/2

when theta=60°

sin pho=1/2

when phi=30°

so,

phi+theta=60°+30°=90°

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Answer 2

Answer:

cos theta=1/2

when theta=60°

sin pho=1/2

when phi=30°

so,

phi+theta=60°+30°=90°

hope its help you.

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