7. If `f(x)=|x-al+lx + bl`, `x in R,b gta gt0`. Then (1) `f'(a+)=1 (2) `f'(a+)=0` (3) `f'(-b ...
234 views · Published 12 October 2018 · 2:05 · Indexed 21 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW 7. If `f(x)=|x-al+lx + bl`, `x in R,b gta gt0`. Then (1) `f'(a+)=1 (2) `f'(a+)=0` (3) `f'(-b +) = 0` (4) `f(-b+)=1`
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