यदि sin alpha sec (30^(@) + alpha) = 1 (...

यदि `sin alpha sec (30^(@) + alpha) = 1 (0 le alpha lt 60^(@))`, तो `sin alpha + cos 2alpha` का मान है-

A

1

B

`(2 + sqrt(3))/(2sqrt(3))`

C

0

D

`sqrt(2)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

A

Promotional Banner

Promotional Banner

Recommended Questions

यदि sin alpha sec (30^(@) + alpha) = 1 (0 le alpha lt 60^(@)), तो sin ...
Text Solution
|
If A=[(cos^2 alpha,sin^2alpha),(cos alpha,sin alpha)] and B=[(sin^2 al...
Text Solution
|
यदि 7 sin alpha=24 cos alpha,0 lt alpha lt (pi)/(2) है तो 14 tan alph...
Text Solution
|
यदि sec alpha+tan alpha=2) है तो sin alpha का मान क्या होगा ?( 0 l...
Text Solution
|
यदि A=[(cos alpha,-sin alpha),(sin alpha,cos alpha)] तो सिद्ध कीजिए की...
Text Solution
|
( cos 2 alpha)/( cos^(4) alpha - sin^(4) alpha ) -(cos^(4) alpha + si...
Text Solution
|
Prove that,(sin alpha + cos alpha)/(cos alpha-sin alpha)=tan2 alpha + ...
Text Solution
|
If cos alpha + cos 2alpha = p,sin alpha + sin 2alpha = q then eliminat...
Text Solution
|
If 0 lt beta lt alpha lt gamma and cos(alpha + beta) = 4/5, sin(alpha...
Text Solution
|