Answer:
17.28
Step-by-step explanation:
Answer:
4 and 5
Step-by-step explanation:
We know that.
√16 < √21 <√25
⇒4 < √21 < 5
Hence √
21 lies between 4 and 5
Answer:
See attached
Step-by-step explanation:
Answer:
1/3 divided by 5/4
So we divide both the top by 3 and the bottom by 3 and so our final answer would be 4 over 7. So that's our simplified fraction
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Invert and multiply:
Take the reciprocal of the divisor and multiply the dividend. The top and bottom are being multiplied by the same number. Since that number is the reciprocal of the bottom part, the bottom becomes one.
Find the biggest common number:
It could be said to be a "more correct" method. This is the correct way since, you can’t divide apples by oranges in the same way as you can’t divide fifths by fourths.
Let's do the trig part first, then the calculus. First we simplify the integrand.

The triple angle formula is:

or

Now we can integrate:


