AP EAMCET Engineering 21 Apr 2019 Shift 2 Paper

Section: Mathematics

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Question : 20 of 160

Marks: +1, -0

Let x = a sinα θ cosα1 θ , y = a sinα+1 θ cosα θ, (θ≠

nπ

2

). If

(x2+y2)m

(xy)n

is independent of θ then the relation between α , m and n is

3mα = n (2α + 1)
m + n = α
2mα = 2nα + m
2m = (2n + 1) α

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