Answer:
Step-by-step explanation:
The given expression is .
The technique that can be used to factor this polynomial is the difference of two squares.
We rewrite the two expressions as;
Recall that;
Find the final cost for a $479 laptop with 8 % sales tax.
1 answer:
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Answer: proof below
<u>Step-by-step explanation:</u>
Use the Difference formula for sin:
sin (A - B) = sin(A)·cos(B) - cos(A)·sin(B)
sin (180° - θ) = sin(180°)·cos(θ) - cos(180°)·sin(θ)
= 0 · cos(θ) - -1 · sin(θ)
= 0 - -sin(θ)
= + sin(θ)
sin (180° - θ) = sin(θ)