0
-cos2(x)
1 = sin2(x) +cos2(x)
1 - cos2(x) = sin2(x)
-cos2(x) = sin2(x) - 1
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∙ 12y ago
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Which basic trigonometric identity is actually a statement of the pythagorean theorem?
COS squared Theta + SIN squared Theta = 1; where Theta is the angles measurement in degrees.
What does 5 radical 3 squared minus 3 radical 5 squared equal?
A Huge ASS
What is the vertex of the parabola when y equals 3x squared plus 2x minus 1?
The minimum value of the parabola is at the point (-1/3, -4/3)
Formula- Height of an equilateral triangle?
The height is a leg of a right triangle. The other leg is 1/2 of the side of the original triangle and the hypotenuse is a side of this same triangle. Use the Pythagorean theorem to solve for the height: If s is the length of the sides of the equilateral triangle, The height is the square root of s squared minus (s/2) squared. Since (s/2) squared is s squared over 4, s squared minus (s/2) squared is 3/4 s squared. I'll let you finish it off.
How can pythagoream theorem be used to find a missing side length of a right triangle?
It can be found by: hypotenuse squared minus known side squared = unknown side squared
What is 1 minus cos squared?
sin squared
How do you prove that the sin over one minus the cosine minus one plus the cosine over the sine equals zero?
Multiply both sides by sin(1-cos) and you lose the denominators and get (sin squared) minus 1+cos times 1-cos. Then multiply out (i.e. expand) 1+cos times 1-cos, which will of course give the difference of two squares: 1 - (cos squared). (because the cross terms cancel out.) (This is diff of 2 squares because 1 is the square of 1.) And so you get (sin squared) - (1 - (cos squared)) = (sin squared) + (cos squared) - 1. Then from basic trig we know that (sin squared) + (cos squared) = 1, so this is 0.
What is sin squared x minus cos squared x?
Sin squared, cos squared...you removed the x in the equation.
What is sin squared equal to?
Sin squared is equal to 1 - cos squared.
Is a minus b squared the same as a squared minus b squared?
No, unless "a" happens to be equal to 0, or to 1.
What is minus 1 squared?
-1² = 1
2 sin squared x plus sin x minus 1 is equal to 0 solve for x?
2 sin2(x) + sin(x) - 1 = 0(2 sin + 1) (sin - 1) = 0Either 2 sin(x) + 1 = 02sin(x) = -1sin(x) = -0.5x = 210°, 330°or sin(x) - 1 = 0sin(x) = 1x = 90°
What is the limit of sin multiplied by x minus 1 over x squared plus 2 as x approaches infinity?
As X approaches infinity it approaches close as you like to 0. so, sin(-1/2)
How do you solve 2x squared minus 5x minus 3?
2x squared minus 5x minus 3 factored is (2x+1)(x-3).
What is sine squared times cotangent squared times secant squared?
The answer is 1. sin^2 x cos^2/sin^2 x 1/cos^2 cos^2 will be cancelled =1 sin^2 also will be cancelled=1 1/1 = 1
How do you factor 8X squared minus 2X minus 1?
(2x - 1)(4x + 1)
Factor sin cubed plus cos cubed?
sin cubed + cos cubed (sin + cos)( sin squared - sin.cos + cos squared) (sin + cos)(1 + sin.cos)
