method?

the tangent to curve y=ex drawn at point (c,ec) intersects line joining the points

(c-1,ec-1) and (c+1,ec+1) at the point?????????????????

which is shortest posible method to solve this type of question????plz share ur ideas.....(&&&&

dont say graphical)

4 Answers

1
Philip Calvert ·

ok my fisrt try would be ........

to take a point x1, y1 that divides the points given in ratio λ:1

then we get coordinates of point of intersection in terms of lambda

satisfy the eq of tangent to get λ

and we re done

it looks little dirty first time but believe me it is not really that devilish

11
virang1 Jhaveri ·

Gud one Philip thx for a new idea

1
Philip Calvert ·

and there is one more way

quite a straightforward one though......

find point of intersection of both the lines

1
Philip Calvert ·

now we should wait for some strikingly brilliant idea from someone else.....

i daresay eureka must have atleast some of them himself [6]

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