Simplify the expression. (cos x)(sec x) - (sin^2 x)

cos x
cos2x
sec2x

Step-by-step explanation:

The given expression is:

Recall form Pythagorean Identity that;

We apply this property to obtain;

We simplify to get;

Recall from the Pythagorean identity that;

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)  

answer: i realy don't get it that much can you me figer it out pleas you

step-by-step explanation: