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Grade: 11
        
Please answer the question from Function..........
.............:.:.:.:..:.:.:.:.:.:..:.:.:.:.:
one month ago

Answers : (1)

Sushant Kumar
45 Points
							
answer is d
as f(x)=kx
f(1)=7=kx hence k=7
f(x)=7x
summation f(x)=7n(n+1)/2
hope this will help
tip: whenever the function is like f(x+y)=f(x)+f(y) it is always kx and we find k by using the conditions given in the question
one month ago
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