If Sinϴ = 2x and xcosϴ = 2, 0⁰ < ϴ < 90⁰ , find the value of 2 ( x^2 + 1 / x^2 ).
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let @ = π/4
sin π/4 = 1/√2 and as cos @ also
so, x= 2√2 and 1/x = 2√2
answer is 65/4
sin π/4 = 1/√2 and as cos @ also
so, x= 2√2 and 1/x = 2√2
answer is 65/4
CryonicStrider:
im sorry this is incorrect, i got the answer. it is 1/2
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