Question

The equation sin(x)=√4/4 is an identity.
T or F?

Answer 1

false

Answer 2

no. an identity is a statement that is ALWAYS true no matter what x is. Here, if x = 0, the equation sin(0) = (sqrt2)/2 would be false.

Answer 3

sin^2x+cos^2x=1, like these rules are identities...the values of x can change so the answer is definitely false.

Answer 4

OH! Okay, I get it now. Thanks to both of you :)

Answer 5

yw