Same chapter1 markDifficulty: Easy
The value of sin2θ + cos2θ is:
Trigonometric Identities
Original Khojo Papers practice question — not from a past board paper.
1/2
No citable source has been recorded for this record. Treat it as practice material, not as fact.
The expression is sin(60° − 30°) = sin 30° = 1/2. Directly, (√3/2)(√3/2) − (1/2)(1/2) = 3/4 − 1/4 = 1/2.
From the same topic and chapter, at a similar level.
The value of sin2θ + cos2θ is:
Trigonometric Identities
The value of tan 45° is:
Trigonometric Identities
The value of sin235° + sin255° is:
Trigonometric Identities
Evaluate: sin 30° · cos 60° + cos 30° · sin 60°.
Trigonometric Identities
If sin θ = 3/5 and θ is acute, find cos θ and tan θ.
Trigonometric Identities
If tan θ = 4/3, find the value of (sin θ + cos θ)/(sin θ − cos θ).
Trigonometric Identities