Verify the identity. 1 − (cos x)2 (sec x)2 = (tan x)2?
1 − (cos x)2(sec x)2 = (tan x)2
1 − (cos x)2(sec x)2= --------- /(cos x)^2
what is the final result.
I'm sorry I'm having you doing my homework for me but I really need to get this for my finals.
Thank you☺
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Verified answer
if you don't put parentheses and exponents properly, no one can answer (except me ! )
[1-(cosx)^2](secx)^2
(sinx)^2 /(cosx)^2
(tanx)^2
and (1-(cosx)^2)(secx)^2 = (sinx)^2/(cosx)^2
btw, it is more usual to write, say (sinx)^2 as sin^2 x, and so on
given ( x^2 + 3x + a million)( x^2 +x + 2) => x^2 ( x^2 +x + 2) + 3x ( x^2 +x + 2) + a million ( x^2 +x + 2) => (x^4 +x^3 + 2x^2) + (3x^3 +3x^2 +6x) +( x^2 +x +2 ) => x^4 + 4x^3 + 6 x^2 + 7x + 2. it somewhat is ur required answer