What is sec(arctan(7x)) ?

The solution to sec(arctan(7x)) is sqrt(1+49x^2)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify sec(arctan(7x))

simplify

sec (arctan (7 x))

1 + 49 x^{2}

Solution steps

sec (arctan (7 x))

Use the following identity:

sec (arctan (x)) = 1 + x^{2}

= 1 + (7 x)^{2}

Simplify

= 1 + 49 x^{2}

cos (54 0^{\circ} - c)

cos (x) + sin (x - (\frac{π}{6}))

\frac{1}{sec ^{2} ( θ )}

cos (3 π - 3 x)

sin (- 1 (x) d x)