(i) Find the value of ‘a’ if x - a is a factor of the polynomial 3x³ + x² - ax - 81.
(ii) Salman deposits Rs 1000 every month in a recurring deposit account for 2 years. If he receives Rs 26000 on maturity, find:
(a) the total interest Salman earns.
(b) the rate of interest.
(iii) In the given figure O, is the centre of the circle. CE is a tangent to the circle at A. If ∠ABD = 26°, then find:
(a) ∠BDA
(b) ∠BAD
(c) ∠CAD
(d) ∠ODB

Solution

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