Question

if cos a = 1/2 , sin b = 1/2 then value of a + b

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Answer 1

Answer:

90

Step-by-step explanation:

Cos a = 1/2 a.= cos‐¹ (1/2) = 60

Sin b = 1/2. b = 30 (Sin 30 =1/2)

so a+b = 60+30 = 90