1 answer:
Answer:
A
Step-by-step explanation:
Check the solution by substituting x =
into the left side of the equation
2sin²x - sinx - 1
= 2sin²(
) - sin (
) - 1
= 2(1)² - 1 - 1
= 2 - 1 - 1
= 0
= right side
is therefore a solution to the equation
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Answer:
35°
Step-by-step explanation:
4x+11 = 5x-24
5x-4x=x
x=24+11
x=35
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=18 sqrt2+15 sqrt2=33 sqrt 2
The answer is b
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hope yhis helps
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