Question

find the value of y if (4/5)ki power 9-y divided by (4/5) ki power 2y equal to (4/5) ki power 4y-5​

Answer 1

Answer:

Step-by-step explanation:

Resons : as the bases are same by using property of exponent we can subtract the powers

1. (4/5)^9-y divided by (4/5)^2y= (4/5)^4y-5
2. (4/5)^9-y-2y=(4/5)^4y-5
3. (4/5)^9-y=(4/5)^4y-5
4. now equalise the powers as bases are same
5. 9-y=4y-5
6. 9+5=4y +y
7. 14=5y
8. 14/5=y .................ans