2.2 In each of the following equations, solve for theta where 0° ≤ 8≤ 90°. Give your answers correct to TWO decimal places, 2.2.1 tan 0 = 2,22 2.2.2 8 cos(0+10°) = 5 2.2.3 7 sec 8-11 = 0 2.3 If 8 tan A + 15 = 0 and A € [90°; 270°], WITHOUT using a calculator and with the aid of a diagram determine the value of the following: 2.3.1 sin² A+ cos² A 2.3.2 34 sin A -17 cos A ​