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
What is the value of x? Please helpppp
2 answers:
3x - 8 =
multiply both side of the equation by 2
2(3x - 8) = 8x + 4
distribute the 2 to the whole parentheses
2 × 3x = 6x
2 × -8 = -16
6x - 16 = 8x + 4
subtract 4 on each side of the equation
6x - 20 = 8x
subtract 6x on both side of the equation
-20 = 2x
divide both side of the equation by 2
-10 = x
There you go! I really hope this helped, if there's anything just let me know! :)
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