Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Help on this math question ASAP

Sultanafahimaaa

Can someone please show me how to solve this step by step, I'll be having a test in an hour

(edited 4 years ago)

Screenshot_20190712-155510_Viber.jpg275.1KB

All of them?
What is the problem with the first question?

Original post by Sultanafahimaaa

Can someone please show me how to solve this step by step, I'll be having a test in an hour

Study Forum Helper

Original post by Sultanafahimaaa

Can someone please show me how to solve this step by step, I'll be having a test in an hour

Nah not step by step, here's something to think about...

For

\dfrac{\sec x - 1}{x \sec x}

you can multiply numerator and denominator by

\cos x

and get

\dfrac{1-\cos x}{x}

. For limit as

x \to 0

, this becomes a limit of the form

\dfrac{0}{0}

, which means you can apply L'Hopital rule.

For the second limit, divide numerator and denominator by

x^2

. Find the limit of the leftover expression.

For Q2, determine limits as

x \to 0

and

x \to \pm \infty

, what are the the axes intercepts? Does this function have a certain max/min?

For Q3, use a substitution... I'll let you think of what it should be.

and for Q4 we can deal with it if you get there.

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