Answer:
The correct answer is option A
Step-by-step explanation:
The volume of a cylinder is given by

Substituting the values of radius and height in above equation, we get -

First of all, you need to attach images for this one. Second of all, graph it in desmos and compare. Thirdly, whichever looks like this.
Answer:
step 6 has an algebraic error
Answer:
C
Step-by-step explanation:
sin C=12/13
cos A=12/13
so sin C=cos A