Answer:
lol you deleted my answer loser
Step-by-step explanation:
Answer:
Answer:
A. 2 sinx cosx - 1 + 2 sin^2 x.
Step-by-step explanation:
sin2x = 2 sinx cosx
cos2x = cos^2x - sin^2x
So sin2x - cos2x = 2 sinx cosx - ( cos^2x - sin^2x)
But cos^2 x = 1 - sin^2 x, so we have:
2 sinx cosx - (1 - sin^2 x - sin^2x)
= 2 sinx cosx - 1 + 2 sin^2 x.
I believe for the first part x would equal -2 and y would equal -1
hope this helps!
Ax + b = r
subtract ax from both sides:-
ax - ax + b = r - ax
b = r - ax (answer)
Answer:
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