Quantitative aptitude

If cos A=sin2A. and a sin12A+b sin10A+c sin8A+sin6A=1. Then a+b+c=?

March 19, 2024

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If cos A=sin2A. and a sin12A+b sin10A+c sin8A+sin6A=1. Then a+b+c=?

If cos A=sin²A. and a sin¹²A+b sin¹⁰A+c sin⁸A+sin⁶A=1. Then a+b+c=?

a) 5

b) 7

c) 6

d) 8

Sol:

If cos A=sin2A. and a sin12A+b sin10A+c sin8A+sin6A=1. Then a+b+c=?

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Sides PQ and SR of a cyclic quadrilateral PQRS are produced to meet at T and sides PS and QR are produced to meet at

If cos A=sin2A. and a sin12A+b sin10A+c sin8A+sin6A=1. Then a+b+c=?

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A and B invest in a business in the ratio 3 : 2. If 5% of the total profit goes to charity and A’s share is Rs. 855. The total profit is

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