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If f(x) = 2x2 – 1, then f(-3) =​

If f(x) = 2x2 – 1, then f(-3) =​
asked 96.4k views
19 votes
If f(x) = 2x2 – 1, then f(-3) =​

asked
User Choco
by
8.8k points

1 Answer

10 votes

Answer:

-4 cot (-45)

Explanation:

cos (390)

sin (330)

answered
User YYZ
by
8.6k points
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