Which of the following is NOT permitted when verifying trigonometric identities? a.
simplifying one side of the identity to match the other side
c.
simplifying each side of the identity separately to get the same expression on both sides
b.
cross multiplying if the identity is a proportion

Please select the best answer from the choices provided

A
B
C

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.