Answer:
Step-by-step explanation:
Find all solutions to the equation.
7 sin^2(x) - 14 sin x + 2 = -5
7sin^2(x)-14 sin x+7 =0
sin^2(x)-2sin x+1 =0
(sinx-1)(sinx-1)=0
sinx=1
x=π/2+2pi*k, k=integer
Answer:
yes
Step-by-step explanation:
Answer:
X=9
You divide 8 in each side and you will get x=9
Step-by-step explanation:
Question:

Answer:


Step-by-step explanation:
Given

Required
Simplify
In trigonometry:

So, the expression becomes:

Simplify the denominator




Express the fraction as:





Rationalize



In trigonometry:

Hence:

