CBSE XI Science Maths
Elvauate 1/2+cos theta+sin theta if tan theta/2=2
Asked by Rohit.koshta01
4th March 2018
12:19 PM
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CBSE XI Science Maths Trigonometric Functions
Find ∑_(r=0)^7〖tan〗^2 πr/16 (STATEMENT : the sum of r varies from 0 to 7 for t tan^2 pi r/16) Give answer in proper steps.
Asked by acv27joy
18th May 2018
5:47 PM
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CBSE XI Science Maths Trigonometric Functions
Show that (1+cos x)3/2(1- cos x)1/2=sin x(1+cos x)
Asked by soumen_tiku
8th June 2018
11:51 PM
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JEE Plances JEE (Main) Maths Trigonometric Ratios, Identities and Equations
Prove the following identity.
Asked by Anish
16th June 2018
4:42 PM
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CBSE XI Science Maths Trigonometric Functions
Evaluate : (1+cos π/8 ) (1+cos 3π/8 ) (1+cos 5π/8 ) (1+cos 7π/8 )
Asked by tps.mjmdr
16th June 2018
5:42 PM
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CBSE XI Science Maths Trigonometric Functions
Evaluate : 16cos (2π/15) cos (4π/15) cos (8π/15) cos (16π/15)
Asked by tps.mjmdr
16th June 2018
5:50 PM
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CBSE XI Science Maths Trigonometric Functions
If sin ^2A=x then express the values of sin A . sin 2A . sin 3A . sin 4A in terms of x.
Asked by tps.mjmdr
16th June 2018
8:11 PM
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JEE Plances JEE (Main) Maths Trigonometric Ratios, Identities and Equations
Prove that
Asked by Anish
11th July 2018
1:33 PM
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CBSE XI Science Maths Trigonometric Functions
(sinø-cosø)^2=1-sin2ø
Asked by abhaysharma2710
15th July 2018
10:09 AM
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CBSE XI Science Maths Trigonometric Functions
For any real x find the minimum and maximum value for the expression 3sin^2x +3sinxcosx + 7cos^2x.
Asked by acv27joy
10th December 2018
1:10 PM
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CBSE XI Science Maths Trigonometric Functions
sinx1sinx2-cosx1cosx2+1=0 the value of tanx1/2*tanx2/2 is alwya equal to?
Asked by aahnik.mohanty
29th May 2019
8:00 PM
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CBSE XI Science Maths Trigonometric Functions
2 tan B + cot B = tan A , show that 2 tan(A-B) = cot B
Asked by agarwalharsh8476
6th August 2019
8:32 PM
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CBSE XI Science Maths Trigonometric Functions
Prove that cos^2 pi/8 + cos^2 3pi/8 + cos^2 5pi/8 + cos^2 7pi/8 =2
Asked by anushkapanwar74
15th August 2019
1:26 PM
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