Question

Solve for cos(57)=x/15

Answer 1

If you mean 57 degrees then the answer is 8.1695...

If you mean 57 radians then the answer is 13.498...

Explanation:

Isolate the x by multiplying 15 on both sides

15 x cos(57) = x

Answer 2

Explanation:

cos(57)=x/15

• 0.544×15=x
• x=8.16

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