1) lf x lies in the lst quadrant and cosx+cos3x=cos2x then x=30o or 45o 2)x∈(0,2π) and cosec x+2=0 then x=7π6,l1π6 3)x∈[0,2π] and (2cosx−l)(3+2cosx)=0 then x=π3 , 5π3 Which of the above statements are correct?
A
only I, II
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
only II, III
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
only I, III
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
I,II,III
No worries! We‘ve got your back. Try BYJU‘S free classes today!