Tìm m để phương trình msin2x-cos2x=m-1 có nghiệm

What is the factored form of the following expressions? d^2 – 13d + 36

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?