1.
2. <-----its 4^x+5, 4 is raised to the x+5!!! Can't figure out how to make it look that way.. =/
3. A formula for cos(3X) in terms of cosX alone.
4. The period of 3cos(5pix+7)
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#1:
If it helps, imagine . Then we get an easier problem:
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#2: Start by taking the natural logarithm of both sides ..
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#3:
Now these will come in handy:
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#4:
If you remember, if you have a sinusoidal wave in the form:
The period is given by:
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