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Popular >

45*cos(45)

Solution

45 \cdot cos (4 5^{\circ})

Solution

\frac{45 2}{2}

+1

Solution steps

45 cos (4 5^{\circ})

Use the following trivial identity:

cos (4 5^{\circ}) = \frac{2}{2}

= 45 \cdot \frac{2}{2}

Simplify

45 \cdot \frac{2}{2} : \frac{45 2}{2}

= \frac{45 2}{2}

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Frequently Asked Questions (FAQ)

What is the value of 45*cos(45) ?
The value of 45*cos(45) is (45sqrt(2))/2