2007-08-19 10:46:18 · 4 answers · asked by sahun d 1 in Science & Mathematics ➔ Mathematics
I'm guessing you meant "cos^2(x)" and "sin^2(x) ...
Remember,
sin^2 x + cos^2 x = 1
2007-08-19 10:56:41 · answer #1 · answered by de4th 4 · 0⤊ 0⤋
the 1st step is to end the sq.... you're able to try this by ability of taking 0.5 of the 2d term after which subtracting or including from the third term to end the sq.... subsequently, 0.5 of two is a million and as a manner to get a million you need to subtract 2 yet then upload 2 to maintain each little thing balanced... x^2 + 2x + 3 - 2 = -2 x^2 + 2x + a million = -2 (x + a million)^2 = -2 And there you pass :D
2016-12-12 06:55:40 · answer #2 · answered by lacue 4 · 0⤊ 0⤋
Is school open already in your area???
Not in mine...
I never had this kind of work before...
2007-08-19 10:50:51 · answer #3 · answered by aspenkdp2003 7 · 0⤊ 0⤋
do your own homework
2007-08-19 10:50:18 · answer #4 · answered by parrotsarenoisy 5 · 1⤊ 0⤋