Make the whole number a fraction. so if youre number is 16 make it 16/1. Then you can go on.
Answer:
Step-by-step explanation:
Given the expression 4^{-2}•7^{-2}. The following expression are equivalent to given expression on simplification.
Generally from indices, a^-b = 1/a^b. Applying this to the given expression we have:
4^{-2}•7^{-2} = 1/4^2 • 1/7^2
= 1/(4×4) • 1/(7×7)
= 1/16 • 1/49
= 1/(16×49)
= 1/784
The answer is 13
25/100 X 80/1
25/10 X 8/1
25 X 8 = 200
200 divided by 10 is 20
20/100 X 65/1
20 X 65= 1,300
1,300 divided by 100 is 13
I made them into fractions.
These were the steps^ :D
Let's check.
x = 5π/24
4x = 5π/6
cos 4x = cos(5π/6) = cos 150° = -√3/2
cos² 4x = (-√3/2)^2 = 3/4
4 cos² 4x -3 = 4 (3/4) - 3 = 0
Answer: TRUE
There is no image but I would likely be glad to help! :)
