Challenger App

No.1 PSC Learning App

1M+ Downloads

(34)5×71272)6×910\frac{(3^4)^5 \times 7^{12}}{7^2)^6\times9^{10}} =

A1

B2

C3

D4

Answer:

A. 1

Read Explanation:

നൽകിയിരിക്കുന്ന വ്യഞ്ജകം:

(34)5×712(72)6×910\frac{(3^4)^5 \times 7^{12}}{(7^2)^6 \times 9^{10}}

പവർ നിയമം ഉപയോഗിക്കാം

(am)n=amn( a^m )^n = a^{mn}
(34)5=320(3^4)^5 = 3^{20}
(72)6=712(7^2)^6 = 7^{12}

320×712712×910\frac{3^{20} \times 7^{12}}{7^{12} \times 9^{10}}
7^{12} cancel ചെയ്യാം


=320910= \frac{3^{20}}{9^{10}}
9=329 = 3^2

910=(32)10=3209^{10} = (3^2)^{10} = 3^{20}

ഇപ്പോൾ,

320320=1\frac{3^{20}}{3^{20}} = 1

അതിനാൽ ഉത്തരം: 1


Related Questions:

A cuboidal room is of length 15 m, breadth 17 m, and height 21 m. Find the cost of painting its walls and ceiling at the rate of ₹40/m²
The total surface area of a cylinder of diameter 10 cm is 330 square centimeters. Find the height of the cylinder?
The floor of an office has dimensions 5 mx 3 m. The cost of painting the walls and ceiling is 7,440 at the rate of 60/m². Find the height of the room (in m). (rounded off to one decimal place)
The measure of each interior angle of a regular polygon is 120° How many sides does this polygon have?
കോണുകളുടെ തുക 8100° ആയ ബഹുഭുജത്തിന് എത്ര വശങ്ങളുണ്ട് ?