Question

Find the exact value of the following expression. If undefined, state, undefined. sec((cot^(-1)(5/12))

Answer 1

use the identity
\[\sec^2 x=1+\tan^2x\]

Answer 2

thanks
littel confused I keep havign a sin leftover

Answer 3

pls explain

Answer 4

there is a right angled triangle with sides 13,5,12
therefore the angle whose cot is 5/12 has a sec of 13/5
Draw the triangle and you will see.

Answer 5

using the formula if cot = 5/12 then tan = 12/5
so sec^2x = 1 + 12^2/ 5^2
= 169/25
sec = 13/5

Answer 6

how can you change sec into sec^2x?

Answer 7

by squaring :)

Answer 8

13/5 is the right ans

Answer 9

\[\sec x=\sqrt{1+\tan^2x}\]