WTrigonometric Ratios and Their Application If we convert 135° to radian measure, we get A.3π4 B.3π2 C.π4 D.π2 E.3+π2 75° in radian measure is A.π75 B.75π C.5π12 D.12π5 E.π30 3.An arc PQ subtends an angle

the equation of ax2+bx+c=0 , then α2 + β2=………… A.b2-4ac B.b2-2aca2 C.ab2-2ac D. ab2-2aca2 E.-b+b2-4ac2a 24.In one of the root of the equation x2+αx-14=0 is 2, then α=………. A.7 B. 5 C. -5 D. 3 E. -7 If