Answer:
Cos^2x csc^2x
Step-by-step explanation:
Cos^2x (1 + cot^2x)
It A because the two mirror each other so you can simplify them to (3x−5)^2.
A mathematical sentence which contains an inequality symbol and one variable raised to the first power is called a linear inequality.
Answer:
Step-by-step explanation:
Put the values:
While subtracting , sign of each term of the second expression changes.
Add the numbers : 9 and 9
Hope I helped!
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Answer:
Since the question is why 1953125 is not a square number, you don’t need a test for perfect squares, you only need something that shows this particular number is not a perfect square.
One starting test for showing a number will NOT be a perfect square is to use “casting out 9’s”. Remove any digits that are 9 or that add up to 9.
Thus: 1953125 becomes 153125 (removing 9) which then becomes 125 since 1+5+3=9. [OR: 53, since 1+1+2+5 = 9] [OR: 35]
(Note that you can repeat the whole process until you have cast out all 9s.)
Examine the number that is left. If it is not a perfect square, then the original number cannot be a perfect square.
125 is not a perfect square [nor is 53 or 35], so 1953125 cannot be a perfect square.
