True or False
1. General angle has anticlockwise direction.
2. Length of an arc of circle is equal to radius multiplied by measure of its central angle.
3. Sine and cosine functions are equal when angle is of measure 60 o.
4. Range of sine function lies between -1 and 1.
Length of an arc of circle is equal to radius multiplied by measure of its central angle? If sin < 0 and cos >0 then terminal ray of 0 lies in 2nd quadrant? Sine and cosine functions are equal when angle is of measure 60 o? Range of sine function lies between -1 and 1?
If the initial ray OX rotates in anti clock wise direction in such a way that it coincides with itself, the angle formed is of measure? An arc subtends an angle of 7/12 radians at the center of the circle and it length is 63 cm. The radius of circle is? If cosec = -17/8 and tan = 8/15 then terminal arm of the angle lies in ?
The word trigonometry is derived from three Greek words which mean ________? If the terminal side of an angle falls on x-axis or y- axis, it is called ________ angle? If lies in 2nd quadrant then any point on its terminal ray has __________ abscissa? The values of all trigonometric function of -7 /4 are the same as those of __________?