3) Rigntui If θ is acute angle and the vector (sin θ)i + (cos θ)) is perpendicular to the vector i- 3 j then (EAM-2000) D6 2) 3) 4)

3) Rigntui If ? is acute angle and the vector (sin ?)i + (cos ?)) is perpendicular to the vector i- 3 j then (EAM-2000) D6 2) 3) 4)

If theta is an acute angle and the vector (sin theta)hat i+(cos theta)hat j is perpendicular to the vector hat i-sqrt(3)hat j, then theta=(pi)/(6) b.(pi)/(5) c.(pi)/(4)d(pi)/(3)

A unit vector perpendicular to each of the vector 3i+2j+4k and 2i+j-k is,

Find vectors perpendicular to the plane of vectors a=2i-6j+3k" and "b=4i+3j+k .

tan θ =-4/3 , sin θ is

If θ is an acute angle and sinθ=cosθ, find the value of 2tan^2θ+sin^2θ−1.

If θ is the angle between two non-zero vectors vec a and vec b , then write down the value of sin θ .

A unit vector perpendicular to the plane of a = 2i - 6j -3k, b = 4i + 3j - k is

Prove: sin^2θ + cos^2θ =1