2021/22 S3 Ex.1B Tricky skills of Law of Indies

2021/22 S3 Ex.1B Tricky Skills of Law of Indices

by LHK

​Use of laws of Indices

Are you familiar with the laws of Indices now?

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​Good! Now, shall we play some tricky skills with them!!

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​Let's try to reverse the law of indices!

Here's an example

Multiple Choice

Q1: Which of the following is equal to 

$$3^{n+2}$$  

• $$3\left(n+2\right)$$  

• $$3^n+2$$  

• $$3^n+6$$  

• $$3^n\times9$$  

Here are some examples

Multiple Choice

Q2: Which of the following is equal to 

$$a^{3-n}$$  

• $$a^3-n$$  

• $$\frac{a^3}{n}$$  

• $$\frac{a^3}{a^n}$$  

• $$\frac{n}{a^3}$$  

Multiple Choice

Q3: Which of the following is equal to 

$$2^{x-3}$$  

• $$\frac{a^x}{3}$$  

• $$\frac{a^x}{8}$$  

• $$\frac{a^x}{6}$$  

• $$2^{\frac{x}{3}}$$  

Let's see have you got them right

Multiple Select

Q4: Which are equivalent to 

$$27^{x+2}$$  ?

• $$27^x\times729$$  

• $$3^{3x}\times729$$  

• $$3^{3x+6}$$  

​WELL DONE!

​THAT'S ALL FOR TODAY :)