SOLUTION: 5=3+7cos((3.14/4)(x-3))

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Question 429591: 5=3+7cos((3.14/4)(x-3))
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

5=3+7cos((3.14/4)(x-3))   Note cos((3.14/4) = sqrt%282%29%2F2

%28%282%2F7%29%2F%28sqrt%282%29%2F2%29%29+=+%28x-3%29

%282sqrt%282%29%2F7%29+=+%28x-3%29

%282sqrt%282%29%2F7%29+%2B+3+=+x

thought this (cosx,sinx) Summary may be useful to You in Your work