Respuesta :

The expression is true

Step-by-step explanation:

  • Step 1: Prove the expression true or false. sec²a + cosec²a = 1/sin²a cos²a

Left Hand Side = sec²a + cosec²a = 1/cos²a + 1/sin²a

                         = sin²a + cos²a/sin²a cos²a (∵ sin²a + cos²a = 1)

                         = 1/sin²a cos²a (∵ sin²a + cos²a = 1)

                         = Right Hand Side