Download App

Exponents (Including Laws of Exponents) — MATHS STD 7 — Question

ICSE BoardEnglish MediumSTD 7MATHSExponents (Including Laws of Exponents)2 Marks
Question
Simplify, giving Solution with positive index
$4x^2y^2 ÷ 9x^3y^3$​​​​​​​
✓

Answer

$4 x^2 y^2 \div 9 x^3 y^3$
$=\frac{4 x^2 y^2}{9 x^3 y^3}=\frac{4 x^{2-3} y^{2-3}}{9}$
$=\frac{4 x^{-1} y^{-1}}{9}=\frac{4}{9 x y}$ (Since index should by positive)

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Question Answer]" from Exponents (Including Laws of Exponents)→Exponents (Including Laws of Exponents) — all question types→MATHS STD 7 question papers→ICSE Board STD 7 question papers→ICSE Board question paper generator→

Similar questions

Ravi walks at a uniform speed of 4 km per hour. How much time does he take to cover 600 metres?
→
A rectangular plot of land is 50 m long. The cost of levelling the plot at $₹ 12.50$ per $m ^2$ is ₹ 20000. Find (i) the area of the plot; (ii) the breadth of the plot; (iii) the perimeter of the plot.
→
In a right-angled triangle if one of the acute angles measures $40^{\circ}$, find the measure of the other acute angles.
→
An aeroplane covers 2500 km, 1200 km and 500 km at the rate of 500 km/hr, 400 km/hr and 250 km/hr respectively. Find its average speed for the whole journey.
→
Let A and B be two sets such that n(A) = 45, n(B) = 38 and n(A ∪B) = 70, find: n (A ∩ B).
→
Evaluate: 9.75 ÷ 5
→
A sum of money put at 9% per annum simple interest amounts to ₹ 10160 in 3 years. What will it amount to in 2 years at 8% per annum?
→
Multiply: $a^3 - 4ab$ and $2a^2b$
→
State, if the following pair of a set, is disjoint:
A = {natural numbers less than 10} and
B = {x : x is a multiple of 5}
→
If $a: b=3: 2$ and $b: c=4: 5$, find $a: c$.
→