Home
Class 11
MATHS
If cosalpha + cosbeta =3/2 and sinalpha ...

If `cosalpha + cosbeta =3/2` and `sinalpha + sinbeta = 1/2` and `theta` is the arithmetic mean of `alpha` and `beta`, then `sin2theta +cos2 theta` is equal to

Promotional Banner

Similar Questions

Explore conceptually related problems

If cos alpha + cos beta = 3/2 and sin alpha + sin beta = 1/2 and theta is the arithmetic mean of alpha and beta then sin 2 theta + cos 2 theta

If cos alpha+cos beta=(3)/(2) and sin alpha+sin beta=(1)/(2) and theta is the arithmetic mean of alpha and beta, then sin2 theta+cos2 theta is equal to:

If cos alpha + cos beta = a, sin alpha + sin beta = b and theta is the arithmetic mean between alpha and beta then sin 2 theta + cos 2 theta is equal to

If cosalpha+cosbeta=(3)/(2)and"sin"alpha+sinbeta=(1)/(2)andtheta is the arithmetic mean of alphaandbeta , then sin2theta+cos2theta is equal to

If cos alpha + cosbeta=a, sinalpha + sinbeta=b and theta is the arithmetic mean between alpha and beta , then (sin2theta + cos 2theta) is equal to :

If cos alpha + cosbeta=a, sinalpha + sinbeta=b and theta is the arithmetic mean between alpha and beta , then (sin2theta + cos 2theta) is equal to :

If cosalpha+cosbeta=a ,sinalpha+sinbeta=b and alpha-beta=2theta, then (cos3theta)/(costheta)=

If cosalpha+cosbeta=1/3 and sinalpha+sinbeta=1/4 prove that cos(alpha-beta)/2=+-5/24