# Edexcel C3 Question

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#1
I have a homework question where I have to fully simplify:

I have simplified this to:

The answer given in the book is:

Can anyone help with the steps?
0
3 years ago
#2
From your expression I'd just rewrite everything in term so sin/cos and cancel down. It should be easy to go back to the tan t sec t form at the tend.
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3 years ago
#3
yeah. Also, when you have the inverse trig functions such as cot on the bottom, you should know to simplify by putting the normal function on top.
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3 years ago
#4
(Original post by Darth_Narwhale)
yeah. Also, when you have the inverse trig functions such as cot on the bottom, you should know to simplify by putting the normal function on top.
isn't an inverse trigonometric function.
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3 years ago
#5
(Original post by RDKGames)
isn't an inverse trigonometric function.
Yeah I know, I thought someone would pick me up on that . Is reciprocal function a better term?
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3 years ago
#6
(Original post by Darth_Narwhale)
Yeah I know, I thought someone would pick me up on that . Is reciprocal function a better term?
Yep
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#7
I keep ending up with:

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3 years ago
#8
(Original post by bendent1234)
I keep ending up with:

1
#9
(Original post by RDKGames)

Oh of course it is
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