1 Paisa per rs 1 per 3 months

Evaluate cos2θ for cosθ = square root of 3/2

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual