Question # 1

By expressing cos 113° in terms of trigonometrical ratios, answer will be

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− cos 76° = -0.7093

− cos 65° = -0.4258

− cos 67° = -0.3907

− cos 62° = -0.8520

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π/ 4

π/ 6

π/ 3

2π/ 3

The eccentricity e of an ellipse is always

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Rational

Real

Irrational

Integer

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quadratic function

constant function

linear function

exponential function

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6x + 2 + c

6x + x²+ c

6x³+ x²+ x

If y = sin (ax + b), then fourth derivative of y with respect to x =

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a⁴cos (ax + b)

a⁴sin (ax + b)

-a⁴sin (ax + b)

a⁴tan (ax + b)

Which is not a half plane

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ax + by < c

ax + by > c

Both A and B

None

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A onto B

both a & c

A into B

none of these

The expansion (1 + x)^-3holds when

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|x| > 1

|x| < 1

x < 1

x > 1

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3 sec²x

3 sec²3x

sec²3x

sec²x

The law of sines can be used to solve

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Right angle triangle

Isosceles triangle

oblique triangle

haxagon

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