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Sin(cos^3/5+sin^5/13)=63/65
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asked
Feb 8
in
Class XI Maths
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विजय
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15
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0
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1
answer
Show that sin-1(5/13)+cos-1(3/5)=tan-1(63/16)
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Mar 23, 2018
in
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(
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inverse trigonometric functions
0
votes
1
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If cos (α + ) =4/5 and sin (α- )=5/13 , where α lie between 0 and π/4, then find the value of tan 2α.
asked
Feb 17, 2018
in
Class XI Maths
by
nikita74
(
-1,048
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trigonometric functions
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Write the complex number z = 1-i/(cos π/3 + i sin π/3)
asked
Feb 19, 2018
in
Class XI Maths
by
nikita74
(
-1,048
points)
complex numbers and quadratic equations
0
votes
1
answer
The minimum value of 3 cos x + 4 sin x + 8 is
asked
Feb 17, 2018
in
Class XI Maths
by
rahul152
(
-2,868
points)
trigonometric functions
0
votes
1
answer
Find the general solution of‘the equation sin x – 3 sin 2x + sin 3x = cos x – 3 cos 2x + cos 3x.
asked
Feb 17, 2018
in
Class XI Maths
by
nikita74
(
-1,048
points)
trigonometric functions
0
votes
1
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Prove that cos cos /2- cos 3 cos 9/2 = sin 7/2 sin 4 .
asked
Feb 17, 2018
in
Class XI Maths
by
vijay
Premium
(
523
points)
trigonometric functions
+1
vote
0
answers
sin^-1 3/5 -sin^-1 9/17= cos^-1 84/85
asked
May 30, 2018
in
Class XII Maths
by
Mohit agrawal
(
12
points)
+1
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answers
sin^-1 3/5 -sin^-1 9/17 cos^-1 84/85
asked
May 30, 2018
in
Class XII Maths
by
Mohit agrawal
(
12
points)
0
votes
1
answer
Find the simplified form of cos-1[3/5 cos x + 4/5 sin x], x ∈ [-3π/4,π/4]
asked
Mar 23, 2018
in
Class XII Maths
by
nikita74
(
-1,048
points)
inverse trigonometric functions
0
votes
1
answer
Solve the equation cos (tan-1x) = sin(cot-13/4)
asked
Mar 23, 2018
in
Class XII Maths
by
rahul152
(
-2,868
points)
inverse trigonometric functions
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