sumayya

Most popular questions and responses by sumayya
  1. maths

    prove that sin A(1+tan A)+cos A(1+cot A)= sec A+ cosec A

    asked on June 29, 2009
  2. maths

    prove that _______1______ - ___1___ =__1___ sec x-tan x cos x cos x - _______1______ sec x + tan x

    asked on June 29, 2009
  1. Economic

    I need urgent answer please

    posted on November 22, 2018