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If tanx = 3/4, 0 < x < 90 evaluate cosx/2sinx A. 8/3 ...
waec-2019 ssce-exam-2019 waec-mathematics-2019 math trigonometry
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If tanx = 3/4, 0 < x < 90 evaluate cosx/2sinx

A. 8/3

B. 3/2

C. 4/3

D. 2/3

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peter
Asked by peterrep:1.6K
University of Lagos Nigeria
22 April 2020

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judziy
Judziy answeredrep:1.8K
University of Benin Nigeria
29 July 2020
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tan(x) = 3/4,

and tan(x) = sin(x)/cos(x)

cos(x)/sin(x) = 4/3

cos(x)/2sin(x)  = 4/(2x3)

= 4/6

= 2/3

Ans D 

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