please help with question 7. Please keep your response easy to follow along with and thank you in advance for your help!

WK. 8 TOPIC 5: Simple Subs with Definite Integrals Q. #7 Please integrate the following definite integrals. When definite integrals involve simple subs (as now !), remember integration limits are x-values not u-values. So, you can either: Option 1: Convert limits to u so can apply limits to solution in u (called "change of variable"), as shown in teaching videos. Option 2: When substituting, clearly show* that leaving limits in x & reverse substitution before applying x - limits. * J. f(x) dx = ] f(u) du Final Answer a) fixedx Final Answer b ) [ sin'xcos' x dx