Start learning 50% faster. Sign in now
A company purchased a machine for Rs. 50,000. The machine depreciates at a rate of 15% per year for two years. After three years, the company sold the m...
A line with slope m touches the parabola y ² = 4ax. The equation of the tangent is:
170, 158, ? , 122, 92, 50
Train P takes 24 seconds to pass a tree and 34 seconds to pass through a 150-meter-long tunnel. Train Q, which is 440 meters long...
The value of cos² 10° + cos² 20° + cos² 30° + ……. + cos² 90° is
If x = 3tan t, y = 3sec t, then the value of d2y/dx2 at t = π/4 is:
(28 × 5 ÷ 7) × 6 = ?
A ladder leaning against a wall makes an angle of 60° with the ground. If the ladder is 10 meters long, how high up the wall does it reach?