Question

Find the envelop of the family et curve x\a+y\b=1and the parameter a&b are connected by the relation; a+b=c​

Answer 1

Answer:

Write the equation of the straight line in intercept form:

where are -intercept and -intercept, respectively. By symmetry, it suffices to consider the lines in the first quadrant, i.e. we assume that The area of the right triangle (Figure ) is

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