Question

prove that oneplus secant theta minus tan theta / 1 + secant theta + tan theta is equal to 1 minus sin theta divided by cos theta ​

Answer 1

Step-by-step explanation:

= -

Hence, velocity of train B w.r.t train A is 144 km/h toward south.

b. Velocity of ground w.r.t. B

= 0 - 90$$

= -90 km/h

Hence, velocity of ground w.r.t train B is 90 km/h towards north.

c. = + = 18 - 54 = -36 km/h

Hence, velocity of monkey will be 36 km/h toward north.