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Recent questions tagged trigonometric ratio
+1
vote
1
answer
If x = a cos θ + sin θ. y = a sin θ – b cos θ. Show that x^2 + y^2 = a^2 + b^2
asked
Apr 3, 2019
in
Class 11
by
kratos
angles
class-11
trigonometric ratio
+3
votes
1
answer
Find the gravitational field strength and potential at the centre of arc of linear mass density λ subtending an angle 2α at the centre.
asked
Apr 1, 2019
in
JEE
by
kratos
irodov
trigonometric ratio
cbse
class-11
jee
angles
class-10
jee mains
surface areas and volumes
gravitation
+2
votes
1
answer
Show that tanA/(1 - cotA) + cotA/(1 - tanA) = 1 + secAcosecA.
asked
Mar 18, 2019
in
Class 11
by
kratos
angles
class-11
trigonometric ratio
+3
votes
1
answer
In the given figure : (i) If ∠AOB = 45°, ∠BOC = 30° and ∠AOD= 110°; find : angles COD and BOD.
asked
Mar 8, 2019
in
Class 11
by
kratos
trigonometric ratio
class-11
lines and angles
angles
class-6
class-7
icse
class-9
class-5
+3
votes
1
answer
Evaluate: 4/3tan^2120° + 3sin^2300° – 2cosec^2240°- cot^260°
asked
Mar 2, 2019
in
Class 11
by
kratos
trigonometric ratio
class-11
angles
trigonometric identities
class-10
trigonometric ratios
standard angles
allied angles
+2
votes
1
answer
Express : (i) 5 litre of milk in cubic meter (m^3) (ii) 25° C in Kelvin.
asked
Feb 8, 2019
in
Class 11
by
kratos
trigonometric ratio
variation
capacity
class-8
class-11
angles
class-10
coordinate geometry
class-5
+2
votes
1
answer
Prove that (1 - cosθ)/sinθ = sinθ/(1 + cosθ)
asked
Dec 5, 2018
in
Class 11
by
kratos
angles
class-11
trigonometric ratio
+1
vote
1
answer
Find the number of degrees in an angle that is (i) of a right angle (ii) 0.2 times of a straight line angle.
asked
Oct 27, 2018
in
Class 11
by
kratos
trigonometric ratio
class-11
angles
class-6
icse
+3
votes
1
answer
d(sin^3 x)/dx = (a) 3cos^3 x (b) 3sin^2x cos x (c) 3sin^2 x (d) cos^3 x
asked
Oct 20, 2018
in
JEE
by
kratos
trigonometric ratio
class-11
jee
differentiation
definite integral
inverse trigonometry
angles
jee mains
class-12
+1
vote
1
answer
If sin θ = and θ is acute, find the value
asked
Oct 13, 2018
in
Class 11
by
kratos
angles
class-11
trigonometric ratio
+2
votes
1
answer
Evaluate: (5 cos^260°+4 sec^230°− tan^245°)/ (sin^230°+ cos^230°)
asked
Sep 6, 2018
in
Class 11
by
kratos
trigonometric ratio
trigonometry
class-11
angles
class-10
trigonometric ratios
t- ratios of angles
+1
vote
1
answer
A circular loop of conducting wire of radius 1 cm is cut at a point A on its circumference.
asked
Aug 28, 2018
in
Class 11
by
kratos
trigonometric ratio
trigonometry
class-11
angles
trigonometry function
trigonometric functions
+1
vote
1
answer
Find the angle formed by the arms of a clock at: (i) 3 O’clock (ii) 6 O’clock
asked
Aug 25, 2018
in
Class 11
by
kratos
trigonometric ratio
class-11
angles
class-6
icse
class-5
+2
votes
1
answer
The angles of a triangle are in A.P and the greatest is double the least. Express the angles in degrees and radians.
asked
Aug 12, 2018
in
Class 11
by
kratos
angles
class-11
trigonometric ratio
+2
votes
1
answer
Find ∫(e^sinx((xcos^3x - sinx)/cos^2x)dx (a) x e^sin x – e^sin x sec x + C
asked
Jun 29, 2018
in
JEE
by
kratos
indefinite integral
trigonometric ratio
class-11
jee
definite integral
angles
indefinite integration
jee mains
wbjee
class-12
+2
votes
1
answer
In the given figure ; AOC-is a straight line. If angle AOB = 50°, angle AOE = 90° and angle COD = 25° ; find the measure of :
asked
Jun 7, 2018
in
Class 11
by
kratos
trigonometric ratio
class-11
angles
class-6
icse
class-5
+3
votes
1
answer
A circular wire of radius 3 cm is cut and bent so as to lie along the circumference
asked
Jun 4, 2018
in
Class 11
by
kratos
trigonometric ratio
trigonometry
class-11
angles
trigonometry function
trigonometric functions
+2
votes
1
answer
Express 25°. 30′ 10″ in radians.
asked
Apr 29, 2018
in
Class 11
by
kratos
angles
class-11
trigonometric ratio
+1
vote
1
answer
Prove that tan α√(1 - sin^2α) = sinα
asked
Apr 9, 2018
in
Class 11
by
kratos
angles
class-11
trigonometric ratio
+1
vote
1
answer
A circular wire of radius 6 cm is cut and bent so as to lie along the circumference of a loop whose radius in 66 cm.
asked
Mar 30, 2018
in
Class 11
by
kratos
angles
class-11
trigonometric ratio
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