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Popular >

2/(cos(45))

Solution

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

Solution

22

+1

Solution steps

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

Use the following trivial identity:

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

= \frac{2}{\frac{2}{2}}

Simplify

\frac{2}{\frac{2}{2}} : 22

= 22

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1 sin (3 0^{\circ})

40 \cdot cos (3 0^{\circ})

sqrt(39)(cos(pi/2)+isin(pi/2))

39 (cos (\frac{π}{2}) + i sin (\frac{π}{2}))

Frequently Asked Questions (FAQ)

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