Cross multiply the expression so that we can get
(1+sinx)(1-sinx) = cos^2 x
1 - sin^2 x = cos^2 x
cos^2 x + sin^2 x = 1
since
cos^2 x + sin^2 x = 1
therefore
1 = 1
the two expressions are identical in a trigonometric sense
Answer:
C - $20.30
Step-by-step explanation:
-9.55 + (-10.75) = - 20.3
Answer: its the first one "opposite sides with equal length"
To add them, you first need a common denominator.
So multiply <span> 1/4 by 5/5 and 1/5 by 4/4 first.
Now they'll be 5/20 and 4/20.
Add them to get 9/20. </span>
Answer:
2
Step-by-step explanation:
