cos(pi/4+A)-cos(pi/4-A) बराबर है...

`cos(pi/4+A)-cos(pi/4-A)` बराबर है

A

`1/sqrt2` sin A

B

`sqrt2` sin A

C

`sqrt2` cos A

D

`-sqrt2` sin A

Verified by Experts

The correct Answer is:

D

cos(pi/4+A)-cos(pi/4-A) बराबर है
Text Solution
|
cos ^ (4) ((pi) / (8)) + cos ^ (4) ((3 pi) / (8)) + cos ^ (4) ((5 pi) ...
Text Solution
|
cos ((A) / (2)) + cos ((B) / (2)) - cos ((C) / (2)) = 4cos ((pi + A) /...
Text Solution
|
(cos ^ (2) ((pi) / (4) -A) -sin ^ (2) ((pi) / (4) -A)) / (cos ^ (2) ((...
Text Solution
|
Prove that: cos(pi/4+A)+cos(pi/4-A)=sqrt(2)cosA
Text Solution
|
सिद्ध कीजिए कि cos((pi)/(4)+1)+cos((pi)/(4)-A)=sqrt2. cos A
Text Solution
|
cos((pi)/(4)+A) cos((pi)/(4) - B) + sin ((pi)/(4) +A) * sin((pi)/4-B)=
Text Solution
|
If A+B+C=180^(@) then prove the following: "cos"A/2+"cos"B/2+"cos"C/...
Text Solution
|
यदि A+B+C=pi हो, तो सिद्ध कीजिए कि : "cos"(A)/(2)+"cos"(B)/(2)+"cos...
Text Solution
|