Find cos x if sin^2x-1/cos x = -1 a. –1 b. 2 c. 1 d. 0

       1

Step-by-step explanation:

Alright, lets get started.

The given expression is :

As per Pythagorean identity,

taking 1 to left side and to right side

Now plugging the value of in given expression

cosx will be cancelled, so

Multiplying -1 in both sides, it will equal to

   ........................ Answer (C)

Hope it will help :)

its c or d   take a lucky guess my dude

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.