The sum of three consecutive numbers is -9 what are the numbers
2 answers:
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I apologize if it’s not the right anwser but i got it online ( the anwser)
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