Question

Cognizant
Choose the correct option.
Which of the given logarithmic expressions is NOT possible?​

Answer 1

Answer:

C. Log 5-7 logarithmic expression is not possible

Answer 2

Answer:

(c) ㏒$5-7$ is not possible

⇒the question is incomplete , i have done this question before so i will attach the question below check it out! and come to explanation.

Step-by-step explanation:

• ㏒$57$  is found in logarithmic Table Value so  ㏒$57$ is the possible  logarithmic expression.

• ㏒$101$   is also the possible logarithmic expression as above.

• ㏒$5(1/5)$   is also possible expression as shown,

                        ㏒$5(1/5)$ = ㏒ $(5/5)$

                                      $=$ ㏒$1$

                                      $= 0$

• ㏒$x^{mn}$ and ㏒$x^{mn}$ is the possible expression.

• But ㏒$x^{m+n}$ and ㏒$x^{m-n}$ are not possible

      ∴ the expression ㏒5-7 is not possible.

Question with complete options is attached here check it and after that check the explanation!