Trigonometric EquationHard
Question
If α is a root of 25 cos2θ + 5 cos θ − 12 = 0, 
< α < π , then sin 2α is equal to-
< α < π , then sin 2α is equal to- Options
A.
B.−
C.
D.−
More Trigonometric Equation Questions
Let two non-collinear unit vectors and form an acute angle. A point P moves so that at any time t the positionvector (wh...Let A and B be two events such thatP and P where stands for complement of event A. Then events A and B are...The value of cos y cos -cos cos x + sin y cos + cos x sin is zero if-...If 0o < θ < 180o thenthere being n number of 2′s, is equal to-...If f(x) = 2tan-1x + sin-1 , x > 1, then f(5) is equal to...