Question

If tan θ = 1, then sin θ . cos θ = ?

Answer 1

tan θ = 1   ...[Given]

∴ θ = 45°   ...[∵ tan 45° = 1]

∴ sin θ . cos θ = sin 45° cos 45°

= `1/sqrt(2) * 1/sqrt(2)`

= `1/2`