Is cos((7pi)/(12))=cos(pi/3+pi/4) ?

The answer to whether cos((7pi)/(12))=cos(pi/3+pi/4) is True

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prove cos((7pi)/(12))=cos(pi/3+pi/4)

prove

cos (\frac{7 π}{12}) = cos (\frac{π}{3} + \frac{π}{4})

True

Solution steps

cos (\frac{7 π}{12}) = cos (\frac{π}{3} + \frac{π}{4})

Manipulating left side

cos (\frac{7 π}{12})

Rewrite using trig identities

= \frac{2 - 6}{4}

Manipulating right side

cos (\frac{π}{3} + \frac{π}{4})

Rewrite using trig identities

= \frac{2 - 6}{4}

We showed that the two sides could take the same form

\Rightarrow True

csc (θ) = 11

cos (2 x - 40) = 0.8

cos (\frac{π}{2} + x) = cos (x)

cos (x) - sin (2 x) = 1

\frac{csc ( 6 x ) + cot ( 6 x )}{csc ( 6 x ) - cot ( 6 x )} = tan (6 x)

Is cos((7pi)/(12))=cos(pi/3+pi/4) ?
The answer to whether cos((7pi)/(12))=cos(pi/3+pi/4) is True