Evaluate \(\int\limits_0^\frac{\pi}{2}\) sinxdx

• A. 2
• B. -1
• C. 1
• D. -2

From the cyclic quadrilateral above, find< TSV

• A. 60°
• B. 80°
• C. 70°
• D. 50°

An arc of the length 16Ï€cm subtends an angle of 80° at the centre of the circle. Find the radius of the circle.

• A. 24cm
• B. 28cm
• C. 36cm
• D. 32cm

If y = 2x³ + 6x² + 6x + 1, Find \(\frac{dy}{dx}\)

• A. 2
• B. \(\frac{1}{3}\)
• C. 1
• D. \(\frac{2}{3}\)

From the diagram below, find the value of< OTQ

• A. 230°
• B. 55°
• C. 115°
• D. 65°

The mean of 2-t, 4+t, 3-2t, 2+t and t-1 is

• A. 2
• B. t
• C. -t
• D. -2

If the mean of 4, y, 8 and 10 is 7. Find Y?

• A. 6
• B. 10
• C. 7
• D. 9

If y = 2x³ + 6x² + 6x + 1, Find dy/dx

• A. 6x² + 12x + 1
• B. 6x² + 6x + 1
• C. 6x² + 6x + 6
• D. 6x² + 12x + 6

Evaluate \(\frac{27^\frac{1}{3} - 8^\frac{2}{3}}{16^\frac{2}{4} \times 2}\)

• A. \(\frac{23}{5}\)
• B. -\(\frac{23}{5}\)
• C. -\(\frac{1}{8}\)
• D. \(\frac{21}{7}\)

Find the mean of 10, 8, 5, 11, 12, 9, 6, 3, 15, and 23.

• A. 11.2
• B. 10
• C. 10.2
• D. 11.3