This is something I've never really gotten the hang of...

If tan 20 = t ; how could the following be expressed in terms of t?

a) tan 70

b) tan 40

c) tan 200

d) sec 20

My answers:

a)

b)

c)

d)

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- July 16th 2007, 11:02 AMjanvdlTrig Help Please
This is something I've never really gotten the hang of...

If tan 20 = t ; how could the following be expressed in terms of t?

a) tan 70

b) tan 40

c) tan 200

d) sec 20

My answers:

a)

b)

c)

d) - July 16th 2007, 11:33 AMred_dog
b)

- July 16th 2007, 03:05 PMSoroban
Hello, janvdl!

It looks like you've got the hang of it . . .

Quote:

If , how could the following be expressed in terms of ?

My answers:

For (b), use the Double-Angle Identity: .

And your answers are correct . . . nice work!