It’s 8 u cross multiply 7 and 1 then 1 and 56 and then divide 56 by 7
Acute scalene because they are all smaller than 90 degrees but different lengths
Answer:

Step-by-step explanation:
we would like to integrate the following Integral:

well, to get the constant we can consider the following Integration rule:

therefore,

recall exponent integration rule:

so let,
Thus integrate:

simplify addition:

reduce fraction:

finally we of course have to add the constant of integration:

hence,
our answer is D)