exam Maths Puzzle Numerical Ability

Prove that:
1 + cos A/ 1 - cos A = tanČA/(secA - 1)Č

Read Solution (Total 0)

exam Other Question

Write an equation of each line. Write the equation in the form y=mx+b
Through (-2.-3) perpendicular to 2x-3y=1
hey, i need help solving the following equations and expressing my answer as an ordered pair if possible

x-5/3y=7
4/7x+y=-13/7

thanks in advance for your help!