Answer:
x is 0 or -7
Step-by-step explanation:

Answer:
If ab=12 and a2+b2=25 then,
(a+b)2=a2+b2+2ab
a+b=√25+24
a+b=√49
a+b=7
Step-by-step explanation:
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Answer:
hi
Step-by-step explanation:
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Answer:
There is no solution for x.
Step-by-step explanation:
We are given that
and we have to solve for x.
Let us assume that
then
........ (1)
Now, we know that for any value of x the value of cos x lies between 1 to - 1.
Hence,
for all x.
⇒
Now, for
, the value of
can never be equal to 1.
Hence, there is no solution for x. (Answer)