Q3: find the values of e, a, b, and c for r = 21/5-2 cos theta.

e = 2/5

a = 5

b = √21

c = 2

Step-by-step explanation:

The first step is to write the given polar equation in standard form by dividing the numerator and denominator by 5;

The eccentricity of this conic section is thus 2/5, the coefficient of cos theta. Nevertheless, the eccentricity of a conic section can also be evaluated using the equation;

This implies that ;

a = 5

c = 2

The value of b is determined using the relation;

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step-by-step explanation: