trigonometry IB grade 12 question?

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trigonometry IB grade 12 question?

the depth y metres of water in a harbour is given by the equation: y = 10 + 4sin(t/2)

a) calculate the depth of the water when t = 2

2007-09-23 08:26:31 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

Plug t=2 into the equation.

y=10+4sin(1). This 1 is in radians. Plug this into your calculator to get the answer (13.366).

MAKE SURE YOUR CALCULATOR IS IN RADIAN MODE!

2007-09-23 08:32:24 · answer #1 · answered by Anonymous · 0⤊ 0⤋

you gotta be kidding me :/

this is so easy

y=10 +4 sin(2/2), note sin(1) = .8417

y= 10 + 3.36 = 13.36

2007-09-23 08:34:16 · answer #2 · answered by dragongml 3 · 0⤊ 0⤋