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2 answers:
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In the standard form of the equation
The middle line =k
For our given problem
f(t) = 40cos (80t + 20)
On comparison we get k=0
Hence middle line=0
Answer:
a. 3(mod 23)
bi d=31 (mod 72)
ii c = 4
iii m = 4
Step-by-step explanation:
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here is a contradiction because in one inequality x can be equal to 15 ; and in the other it cannot