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Recent questions tagged trigonomertry
+1
vote
1
answer
Prove geometrically that cos(x + y) = cos x, cos y – sin x.sin y.
asked
Jan 13, 2019
in
Class 12
by
kratos
trigonomertry
cbse
class-11
parabola
class-10
class-12
+2
votes
1
answer
Evalute : ((3tan^2 30^o + tan^2 60^o + cosec 30^o - tan 45^o)/cot^2 45^o)
asked
Dec 3, 2018
in
Class 11
by
kratos
trigonomertry
cbse
trigonometry
class-11
class-10
t- ratios of angles
trigonometric functions
+2
votes
1
answer
Find cosec 30^o and cos 60^o geometrically.
asked
Oct 18, 2018
in
Class 11
by
kratos
trigonomertry
algebra
cbse
class-11
class-10
class-7
+3
votes
1
answer
Evaluate : (sin 90^o/cos 45^o) + (1/cosec 30^o)
asked
Feb 8, 2018
in
Class 10
by
kratos
trigonometry
class-10
trigonomertry
cbse
t- ratios of angles
+1
vote
1
answer
Evaluate : (3 tan^2 30 + tan^2 60 + cosec 30 - tan 45)/ cot^2 45
asked
Feb 6, 2018
in
Class 10
by
kratos
trigonomertry
cbse
trigonometry
trigonometric identities
class-10
t- ratios of angles
+3
votes
1
answer
If α = tan^-1 (1) + 1/2 tan^-1 (2) + 1/3 tan^-1 (3) , β = tan^-1 (1) + 2 tan^-1(1/2) + 3tan^-1 (1/3) and |α - β| = pπ/q + r/* cot^-1(3),
asked
Jan 20, 2018
in
JEE
by
kratos
trigonomertry
isc
cbse
trigonometry
definite integration
jee
class-11
class-10
icse
jee mains
class-12
trigonometric functions
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