1) The value of the integral So 1 cos2 0+4 sin2 0 -do, is 2) The value of the integral [2x cos 20 13-12 cos e -de, is 3) The value of the integral fo cosaz dx, where a, m > 0, is O Te a'm 1p-am 2m O pam 3m -am 4m4) The value of the integral J- (1241)(12421+2) dx, is 5) The value of the integral So - di dx, is ( 24+ 1) 6) The value of the integral So Ferdx, 0