Please help me with these problems!

6-99. Solve the equation 4 cos2 x = 3 for -oo

6-99. 6-100. 6-101. 6-102. 6-103. Solve the equation 4 cos2 x = 3 for 00 < x < 00. x2 3x + A We know that = x + B for some numbers A Copy the graphs of y = f(x) and y = g(x) on the same set of axes. and B. Find A and B. a. b. Use graphical addition to sketch the graph of h(x) = f (x) + g(x). Make a reasonable guess for the equations f (x) and g(x). Use this to test your graph of h(x). Rewrite the following expression in terms of sin z : 4+ 3 cos2 z . Solve each of the following equations. a. b. log3(x+ 9) log3 x + logs 25 = 4 + 1000 = 10000