Why is the integer 333 also a rational exponent?
A
Because an even root of a negative number is not real.
B
a5=a⋅a⋅a⋅a⋅aa^5=a\cdot a\cdot a\cdot a\cdot aa5=a⋅a⋅a⋅a⋅a
C
Because 3=313=\frac{3}{1}3=13.
D
For powers with the same base, am⋅an=a^m\cdot a^n=am⋅an= am+n\boxed{a^{m+n}}am+n.
1.2.1 Algebra and Functions Flashcards
Flashcards for WJEC A Level Maths 1.2.1 Algebra and Functions, covering the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4. 21 cards, matched to the WJEC A Level Maths (1300QS) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.