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3 years ago

Simplify the expression using the appropriate identities. (Do not use calculator)

Mathematics

1 answer:

bezimeni [28]3 years ago

6 0

Answer:

sin -1 degrees.

Step-by-step explanation:

sin (A - B) = sin A cos B - cos A sin B

Therefore sin 9° cos 10°- cos 9º sin 10° = sin (9 - 10)

= sin -1 degrees.

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Tanzania [10]

Option d: reflect across the y-axis, stretch the graph vertically by a factor of 3, shift 2 units up.

Step-by-step explanation:

The parent function is $f(x)=2^{x}$

The transformation function is $g(x)=3(2)^{-x} +2$

In the transformed function, the function is added +2, which shifts the graph by 2 units up.

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Thus, the correct answer is option d.

The graph is attached below which shows the parent function and the transformed function.

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