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Popular >

sec(390)

Solution

sec (39 0^{\circ})

Solution

\frac{2 3}{3}

+1

Solution steps

sec (39 0^{\circ})

sec (39 0^{\circ}) = sec (3 0^{\circ})

= sec (3 0^{\circ})

Use the following trivial identity:

sec (3 0^{\circ}) = \frac{2 3}{3}

= \frac{2 3}{3}

Popular Examples

(8tan(pi/8))/(1-tan^2(pi/8))

\frac{8 tan ( \frac{π}{8} )}{1 - tan ^{2} ( \frac{π}{8} )}

cos^{2} (8)

sin(arcsin(3/5)-arccos(-8/17))

sin (arcsin (\frac{3}{5}) - arccos (- \frac{8}{17}))

cos(pi/2)-pi/2 sin(pi/2)

cos (\frac{π}{2}) - \frac{π}{2} sin (\frac{π}{2})

1000 cos (3 0^{\circ})

Frequently Asked Questions (FAQ)

What is the value of sec(390) ?
The value of sec(390) is (2sqrt(3))/3