M3MORIZ3: TRIG ID3NTITI3S

Match the following:

• cosAcosB - sinAsinB

• sin(A - B) =

• sinAcosB + cosAsinB

• cos(A - B) =

• cosAcosB + sinAsinB

• cos(A + B) =

• sinAcosB - cosAsinB

• sin(A + B) =

sinAcosB - cosAsinB =

• sin(A - B) =

• cos(A - B) =

• sin(A + B) =

• cos(A + B) =

• None of

  these.

sinAcosB + cosAsinB =

• sin(A - B) =

• cos(A - B) =

• sin(A + B) =

• cos(A + B) =

• None of

  these.

cosAcosB + sinAsinB =

• sin(A - B) =

• cos(A - B) =

• sin(A + B) =

• cos(A + B) =

• None of

  these.

cosAcosB - sinAsinB =

• sin(A - B) =

• cos(A - B) =

• sin(A + B) =

• cos(A + B) =

• None of

  these.

Match the following:

• 1 - tanA tanB

  tanA + tanB

• tan(A - B) =

• tanA - tanB

  1 + tanA tanB

• cot(A + B) =

• tanA + tanB

  1 - tanA tanB

• tan(A + B) =

• 1 + tanA tanB

  tanA - tanB

• cot(A - B) =

tanA - tanB

1 + tanA tanB

equals?

• tan(A - B) =

• tan(A + B) =

• cot(A - B) =

• cot(A + B) =

• None of

  these.

tanA + tanB

1 - tanA tanB

equals?

• tan(A - B) =

• tan(A + B) =

• cot(A - B) =

• cot(A + B) =

• None of

  these.

1 - tanA tanB

tanA + tanB

equals?

• tan(A - B) =

• tan(A + B) =

• cot(A - B) =

• cot(A + B) =

• None of

  these.

1 + tanA tanB

tanA - tanB

equals?

• tan(A - B) =

• tan(A + B) =

• cot(A - B) =

• cot(A + B) =

• None of

  these.