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What is the sin pi over 2?
sin(pi/2)=1
What is the exact value of tan pie over 2?
1
How can you prove that 1-2 cosine squared over sine times cosine is equal to tangent minus cotangent?
sin2 + cos2 = 1 So, (1 - 2*cos2)/(sin*cos) = (sin2 + cos2 - 2*cos2)/(sin*cos) = (sin2 - cos2)/(sin*cos) = sin2/(sin*cos) - cos2/(sin*cos) = sin/cos - cos-sin = tan - cot
What is the relation between definite integrals and areas?
Consider the integral of sin x over the interval from 0 to 2pi. In this interval the value of sin x rises from 0 to 1 then falls through 0 to -1 and then rises again to 0. In other words the part of the sin x function between 0 and pi is 'above' the axis and the part between pi and 2pi is 'below' the axis. The value of this integral is zero because although the areas enclosed by the parts of the function between 0 and pi and pi and 2pi are the same the integral of the latter part is negative. The point I am trying to make is that a definite integral gives the area between a function and the horizontal axis but areas below the axis are negative. The integral of sin x over the interval from 0 to pi is 2. The integral of six x over the interval from pi to 2pi is -2.
If x is obtuse and sin x equals b how do you show sin 2x is less than b?
you need to explain it better but with what i got i if sin x equals b obviously sin 2x is double of b hence sin 2x is more than b. {Not obvious at all, actually. And the above is false. Sin(Pi/2) = 1 and Sin(Pi)=0. But clearly 2 is not greater than 0. Contradiction.} Obtuse means Pi/2 < x < Pi So, sin(x) = b means b>0, because sin(y) > 0 if 0<y<Pi sin(2x)=2sin(x)cos(x) cos(x) < 0 because cos(Pi/2)= 0 and the derivative is negative there. Hence, sin(2x) = 2 sin(x) cos(x) = 2*b*(-K), where K is a positive constant Since b>0, -2Kb < b
What is the sin of pie over 2?
1
What is sin of 3 pi over 2?
sin pi/2 =1 sin 3 pi/2 is negative 1 ( it is in 3rd quadrant where sin is negative
What is the sin of 2 pie?
sin(2*pi) - not pie - is the same as sin(0) = 0
What is sin pie divided by six equals one half?
Sin(pi/6) = 1/2 is a true statement [not pie].
What is the sin of 1305 degrees?
sin(1,305) = sin(225) = -0.70711 (rounded) = 1/2 of the negative square root of 2.
What is the sin pi over 2?
sin(pi/2)=1
What is sine of 3 pie divided by 4?
0.75
Name four negative numbers greater than negative pie?
-1,-√2,-2,-3. I think what he meant to say was negative integers. There is no answer in that case.
What is 1 over 3 times negative 2 minus negative 2?
negative 2 over 6
Which is greater negative 2 over 3 or negative 2 over 8?
2 over 8
What is the value of sin 3 pi over 2?
sin(3π/2) = -1
What is negative 4 over negative 2 simplify to?
2
