Some quick questions on maths

Question 1

Do you know the name of this trigonometric function?

Sine

Cosine

Tangent

Cosecant

Cotangent

Arcsine

Question 2

0, 3, 8, 15, 24, 35... Do you know what number comes next?

Question 3

Find the solution of this system of equations

x=1; y=3

x=10; y=0

x=-3; y=7

x=11; y=-2

x=5; y=5

This system has no solution

Question 4

Which of these quantities is the biggest?

Natural logarithm of 1,000

Common logarithm of 10,000

Sine of 1

2 + 2

Question 5

Solve this quadratic equation

x1=3; x2=-1

x1=-1; x2=1

x1=1; x2=-1

x1=4; x2=1

x1=8; x2=-3

x1=-1; x2=-3

Question 6

What is the result of the fifth prime number multiplied by the ninth one (the first prime number is 2)?

121

490

133

253

179

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