Question

1, Solve cos(x)=0.17cos(x)=0.17 on 0≤x<2π0≤x<2π There are two solutions, A and B, with A < B...

1, Solve cos(x)=0.17cos(x)=0.17 on 0≤x<2π0≤x<2π

There are two solutions, A and B, with A < B

2, Find the EXACT value of cos(A−B)cos(A-B) if sin A = 3434, cos A = √7474, sin B = √91109110, and cos B = 310310.

cos(A−B)cos(A-B) =

3,

Find all solutions of the equation 2cosx−1=02cosx-1=0 on 0≤x<2π0≤x<2π

The answers are A and B, where A<BA<B

A=? B=?

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