Answer:
x = π/2 + πk
Step-by-step explanation:
cot² x csc² x + 2 csc² x − cot² x = 2
Multiply both sides by sin² x:
cot² x + 2 − cos² x = 2 sin² x
Add cos² x to both sides:
cot² x + 2 = 2 sin² x + cos² x
Pythagorean identity:
cot² x + 2 = sin² x + 1
Subtract 1 from both sides:
cot² x + 1 = sin² x
Pythagorean identity:
csc² x = sin² x
Multiply both sides by sin² x:
1 = sin⁴ x
Take the fourth root:
sin x = ±1
Solve for x:
x = π/2 + 2πk, 3π/2 + 2πk
Which simplifies to:
x = π/2 + πk
Last Choice is the answer
Answer:
(16, 11) or ( 16, 10 )
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Given expression:</u>
<u>Distribute and simplify:</u>
- -0.5(20f) - 0.5(- 16) =
- - 10f + 8
the answer is 1/10 :))))))))
