Evaluate the Integral $\int_{0}^{\pi / 4} 3(1+\tan t)^{3} \sec ^{2} t~~ d t$

Q16: An animal population is increasing at

Q17: An animal population is increasing at

Q18: Given that <span class="ql-formula" data-value="\int_{4}^{6}

Q19: Find the derivative of the function.

Q20: Evaluate the definite integral. <span

Q22: Approximate the area under the curve

Q23: Determine a region whose area is

Q24: Evaluate the integral if it exists.

Q25: Evaluate the integral by making the

Q26: If <span class="ql-formula" data-value="h^{\prime}"><span class="katex"><span