Can anyone help the question is at the bottom
1 answer:
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Answer:
b = 36
Step-by-step explanation:
Assuming this is a right triangle with hypotenuse = c and legs a and b
Then using Pythagoras' identity.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
a² + b² = c², and substituting values
15² + b² = 39², that is
225 + b² = 1521 ( subtract 225 from both sides )
b² = 1296 ( take the square root of both sides )
b = = 36
You can break the integral of a sum/difference into the sum/difference of the integrals:
The first integral can be solved using the power rule for integrations:
As for the second, remember the chain of derivation of trigonometric functions:
The integration chain is the same, but it follows the opposite direction: the integral of the cosine function is the sine function. So, you have
Since this is an indefinite integral, we must add the generic costant to the answer: