Answer:
We must prove that (c+a)(c+d) = (b+c)(b+d)
- Let us use principles from mathematical induction

- a=bx , b=cx, c=dx
- a+c = b + c
- c +d = b + d
- Such that (a+c)(c+d)=(b+c)(b+d)
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Answer:
f = 4
Step-by-step explanation:
60= 15f
divide both side by 15
f = 4
Answer:
5,13,18
Step-by-step explanation:
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