Question

What is the result when the following expression is simplified as much as possible?

sin(2h)sec(h)+2sin(−h)​

Answer 1

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Because sin x is an odd function, we can rewrite the second term in the expression.

2sin(−h)=−2sin h.

We now use a double-angle formula to expand the first term.

sin(2h)sec h=2sin h cos h sec h.

Because they are reciprocals, cos h sec h=1.

2sin h cos h sec h−2sin h=2sin h−2sin h=0.

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Answer 2

Answer:

Lecture: Read sections 1.1 (Four Ways to Represent a Function) and 1.2 (Mathematical Models: A Catalog of Essential Functions). In 1.1 do #4, 7, 8, 25, 34, 41, 47, 51, 54, 71, 73, 77. In 1.2 do #7, 12, 18, 20.

Step-by-step explanation: