The general values of θ satisfying the equation 2sin2θ−3sinθ−2=0 is-
A
nπ+(−1)nπ/6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
nπ+(−1)nπ/2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
nπ+(−1)n5π/6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
nπ+(−1)n7π/6
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is Dnπ+(−1)n7π/6 On solving the quadratic equation, 2sin2θ−3sinθ−2=0 (sinθ−2)(2sinθ+1)=0 Only possible value : sinθ=−12 Hence , θ=nπ+(−1)n7π/6 Option D