0
In order to answer this, you need to get away from the idea that the sine ratio is only relevant in right angled triangles.
One way is to consider the sine ratio as the y coordinate of the point on the unit circle at which the radius makes an angle of 0 degrees with the x-axis. Since the radius makes an angle of 0 degrees, it lies along the x-axis. And a point at a distance 1 from the origin will have coordinates (1,0) so the y coordinate is 0.
Another, more advanced way, is to consider the infinite series for sin(x) with x measured in radians. Since 0 degrees = 0 radians, the measurement scale does not matter.sin(x) = x - x^3/3! + x^5/5! - x^7/7! + ...
When x = 0, every term in this series is 0 and so the infinite sum must be 0.
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How do you show that sinx divided by tanx equals cosx?
Let: o = opposite h = hypotenuse a = adjacent sin = o/h; tan = o/a Therefore, sin/tan = (o/h)/(o/a) = (o/h)*(a/o) = a/h = cos
Are there other factors of 0?
yes there are because anything times 0 equals 0. so there are millions of numbers that you multiply to equal zero. one factor of 0 is 2 or maybe 3 or 4 or 5 because 0 times 5 equals o, 564,453,895,373 times 0 equals
What does X equal for the equation negative sin x minus cos x equals 0?
Consider the meaning of the sine and cosine functions. They are ratios of the side lengths in a right triangle. Sine is the length of the side opposite the angle, divided by that of the hypotenuse, and cosine is the length of the adjacent side, again, divided by the length of the hypotenuse. Consider then: sin = o/h cos = a/h This means that according to our problem, if x is the angle we're measuring in the triangle: -(o / h) - (a / h) = 0 ∴ -o - a = 0 ∴ a = -o Which tells us that the opposite and adjacent sides on our triangle are of equal length. This means that our triangle is not only a right triangle, but an isosceles triangle as well. That means that our angle (x) must be π/4, or 45°
If m varies directly as n and inversely as o and m equals 20 when n equals 50 and o equals 10 find m when n equals 96 and o equals 16?
m = 24
4 equals O of the W?
4 equals O of the W.--> 4 oceans of the world
