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Grade 1010 grade maths

if x=asecΘ+btanΘ and y=atanΘ+bsecΘ, then prove that x2-y2=a2-b2.

Profile image of kaushik kashyap
11 Years agoGrade 10
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1 Answer

Profile image of Nishant Vora
11 Years ago
Hello Student, this is very simple problem.

x=asecΘ+btanΘ …....eqn (1)
y=atanΘ+bsecΘ.........eqn (2)

Square and substract eqn (1) and (2)
so you will get the answer