>
Exams
>
Mathematics
>
Trigonometry
>
the number of solutions of sin2x 4cosx 2 sinx in 4
Question:
The number of solutions of sin2x+4cosx= 2+ sinx, in [π- ,4π ] is
SRMJEEE - 2018
SRMJEEE
Updated On:
Apr 24, 2025
6
4
3
5
Hide Solution
Verified By Collegedunia
The Correct Option is
B
Solution and Explanation
The correct option is (B): 4
Download Solution in PDF
Was this answer helpful?
0
1
Top Questions on Trigonometry
In a battle, the commander-in-chief arranges his soldiers in a formation of three concentric circles. The radii of the circles are in an arithmetic progression: the smallest radius is 70m (meters) and the largest is 140m.
If each soldier is to be separated from the adjacent soldiers standing on the same circle by 1m, how many soldiers are required to complete the formation? (Consider } $\pi = \frac{22}{7}$ \textbf{.)
XAT - 2026
Quantitative Ability and Data Interpretation
Trigonometry
View Solution
An archer is standing at a point A. His target is the top of a tree which is 56 m high and its base is at point C. The angle of elevation of the top of the tree is initially \(45^\circ\). The archer then moves backwards along the line AC so that the angle of elevation becomes \(30^\circ\). If the height of the archer is 6 m, find the distance moved by the archer.
XAT - 2026
Quantitative Ability and Data Interpretation
Trigonometry
View Solution
The angles of elevation of the top of a tower from two points at a distance of 5 meters and 20 meters along the same straight line from the base of the tower, are complementary. Find the height of the tower.
CUET (UG) - 2025
General Aptitude
Trigonometry
View Solution
A ladder leaning against a wall makes an angle of 45° with the ground. If the length of the ladder is 10 m, what is the distance of the foot of the ladder from the wall?
CUET (UG) - 2025
General Aptitude
Trigonometry
View Solution
Find the angle of elevation of the Sun when the length of the shadow of a pole is $\sqrt{3
$ times the height of the pole.}
CUET (UG) - 2025
Quantitative Aptitude
Trigonometry
View Solution
View More Questions
Questions Asked in SRMJEEE exam
Markovnikov's rule is applicable to which of the following reactions?
SRMJEEE - 2025
Chemical Reactions
View Solution
Calculate the Reynolds number for a liquid with density 1 g/cm³ and viscosity 8 × 10⁻⁴ Pa·s, flowing at 0.5 m/s through a pipe of diameter 4 cm.
SRMJEEE - 2025
Viscosity
View Solution
A current of 2 A passes through a coil of 100 turns, producing a magnetic flux of 5 × 10⁻⁵ Wb per turn. What is the magnetic energy associated with the coil?
SRMJEEE - 2025
Magnetic Field
View Solution
A box contains 5 red balls and 7 blue balls. Two balls are drawn at random without replacement. What is the probability that both balls are red?
SRMJEEE - 2025
Probability
View Solution
The molar conductivities at infinite dilution for Na₂SO₄, K₂SO₄, KCl, HCl, and HCOONa at 300 K are 260, 308, 150, 426, and 105 S·cm²·mol⁻¹, respectively. What will be the molar conductivity at infinite dilution (Λ⁰) for formic acid in the same unit?
SRMJEEE - 2025
Mole concept and Molar Masses
View Solution
View More Questions