O-
If the sin 90° is 1, then the cos
(4 points)

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.