Home
Class 14
MATHS
tanalpha=a//b then the value of Sinalpha...

`tanalpha=a//b` then the value of `Sinalpha+Cosalpha` is

A

`a2+b2sqrt'''a+ba2+b2a+b`

B

`a+ba2+b2sqrt'''a+ba2+b2`

C

`a2-b2sqrt'''a+ba2-b2a+b`

D

`a+ba2-b2sqrt'''a+ba2-b2`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

If tanalpha=2 , then the value of (sinalpha)/(sin^(3)alpha+cos^(3)alpha) is

If 7sinalpha=24cosalpha,0ltalphalt(pi)/(2) then the value of 14tanalpha-75cosalpha-7secalpha is equal to

If alpha is in first quadrant such that tan^(2)alpha=(8)/(7) , then the value of ((1+sinalpha)(1-sinalpha))/((1+cosalpha)(1-cosalpha))

If cosalpha+cosbeta+cosgamma=sinalpha+sinbeta+singamma=0 , then the value of cos3alpha+cos3beta+cos3gamma is

If vectos b=(tanalpha,-1,2sqrt(sinalpha//2)) and c=(tanalpha,tanalpha,-(3)/(sqrt(sinalpha//2))) are orthogonal and vectors a=(1,3,sin2alpha) makes an obtuse angle with the Z-axis, then the value of alpha is

If A=[{:(cosalpha,-sinalpha),(sinalpha,cosalpha):}] , then find the least value of alpha for which A+A'=I.