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Home/Practice questions/General Aptitude Test
General Aptitude TestQuantitative ReasoningTrigonometry

If sin ( θ + 30) = cos5θ then what is the value of θ ?

If sin ( θ + 30) = cos5θ then what is the value of  θ ?

Answer & explanation+

Correct answer: option 2

sin ( θ + 30º ) = cos5θ

{ If sinA = cosB then A + B = 90º }

So,  θ + 30º + 5θ = 90º

6θ = 60º

θ = 10º

 

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