119
Evaluate : $2 \tan^2 45^\circ + \cos^2 30^\circ - \sin^2 90^\circ$.
Show SolutionHide Solution↓
Solution: (a) $2(1)^2 + \left(\frac{\sqrt{3}}{2}\right)^2 - (1)^2 = \frac{7}{4}$
Evaluate : 2 2 45° + 2 30° - 2 90° .
CBSE Class 10 Maths PYQ · Trigonometry · Specific Angles Expression · 2 Marks · March 2025 · Basic
Solve it yourself first — then press ↓ or tap Show Solution. Use ← → for previous / next question.