Prove that sqrt(3)"cosec"20^(@)-"sec"20^...

Prove that `sqrt(3)"cosec"20^(@)-"sec"20^(@) =4`.

Text Solution

Verified by Experts

The correct Answer is:

`=4 = R.H.S.`

Promotional Banner

Promotional Banner

Topper's Solved these Questions

MODEL PAPER 7
VGS PUBLICATION-BRILLIANT|Exercise SECTION -C|8 Videos
MODEL PAPER 7
VGS PUBLICATION-BRILLIANT|Exercise SECTION -C|8 Videos
MODEL PAPER 6
VGS PUBLICATION-BRILLIANT|Exercise SECTION - C|8 Videos
MODEL PAPER 8
VGS PUBLICATION-BRILLIANT|Exercise SECTION C (Long answer type questions)|7 Videos

VGS PUBLICATION-BRILLIANT-MODEL PAPER 7-SECTION -B

If A is a non-singular matrix then prove that A^(-1) = (adjA)/(|A|).
Text Solution
|
bara,barb,barc are non coplanar vectors. Prove that the four points -b...
Text Solution
|
Find the unit vector perpendicular to the plane passing through the po...
Text Solution
|
Prove that sqrt(3)"cosec"20^(@)-"sec"20^(@) =4.
Text Solution
|
Solve the equation 1 + sin^(2) theta = 3 sin theta cos theta.
Text Solution
|
Prove that : tan^(-1) ""(1)/(2) + tan^(-1) ""(1)/(5) + tan^(-1) ""(1)/...
Text Solution
|
If cot A/2:cot"" B/2: cot"" C/2 = 3:5:7 then show that a:b:c = 6:5:4.
Text Solution
|