Question
Simplify: sin 780° sin 480° + cos 120° sin 30°
More Trigonometry Questions
- Take θ = 450
- Simplify the following trigonometric expression: 11 sin 42° sec 48° − 7 tan 37° tan 53°
- Find the value of tan(75°) using the identity for tan(A+B).
- Find the value of sin²33° + sin²57° + cos²48° + cos²42°.
- sin2 7 ° + sin2 8 ° + sin2 9 ° + sin2 10 ° + ……… + sin2 83 ° = ?
- If cos(90° − θ) = 3/5 for an acute angle θ, find:
- If sin(A + B) = sinAcosB + cosAsinB, then the value of sin75° is
- Find the value of the given expression. 3 × (sin 30° + cos 60°)
- If cosec A = (2/√3), then what will be the value of tan⁴ A?
- If X = 15°, find the value of: cos²(2X) + sin²(3X) - tan²(2X)
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