ifsin(2A)=cos75,find the smallest position value of A

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ifsin(2A)=cos75,find the smallest position value of A

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Kylie 1 month 2021-08-14T00:43:47+00:00 1 Answer 0 views 0

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    2021-08-14T00:45:29+00:00

    Answer:

    Sin2A = Cos75° …..{SinA = Cos(90 – A)}

    Cos(90°- 2A) = Cos75°  

    Removing Cos From LHS and RHS  

    90° – 2A = 75°  

    2A = 90° – 75°  

    2A = 15  

    A = 15/2  

    A = 7.5

    Step-by-step explanation:

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