$$\text { Show that } \int _ { 0 } ^ { x } - 5 \cos 2 x d x = 0 \text { by interpreting the definite integral geometrically. }$$

Q12: Find the area of the region

Q13: Find the derivative of the function.

Q14: Estimate the area from 0 to

Q15: Find the integral.<br> <span class="ql-formula" data-value="\int

Q16: Find the indefinite integral. <span

Q18: Approximate the area under the curve

Q19: Find the indefinite integral. <span

Q20: Evaluate the Riemann sum for

Q21: Find the derivative of the function.

Q22: <span class="ql-formula" data-value="\text { Find a function