NOMand 9θ < 90°, then the value of tan 6 θ is9032 If cos 90-sin θ(

1.	NOMand 9θ < 90°, then the value of tan 6 θ is9032 If cos 90-sin θ(a) 13(b) 3(c) 1(d) 0
Answer» the valve of tan 60 is root 3 cos(9∅) = sin∅=> cos(9∅) = cos(π/2-∅)=> 9∅ = π/2 -∅=> 10∅ = π/2=> ∅ = π/20 so, 6∅ = 6π/20 = 3π/10tan(3π/10) = 1.37 process is correct, but i think options are wrong.

NOMand 9θ < 90°, then the value of tan 6 θ is9032 If cos 90-sin θ(a) 13(b) 3(c) 1(d) 0

Answer»

the valve of tan 60 is root 3

cos(9∅) = sin∅=> cos(9∅) = cos(π/2-∅)=> 9∅ = π/2 -∅=> 10∅ = π/2=> ∅ = π/20

so, 6∅ = 6π/20 = 3π/10tan(3π/10) = 1.37

process is correct, but i think options are wrong.