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Show sin((a-b)/2) < ((a-b)/2). Why is this true?
1 answer
because sin x < x
Just graph it - the curve lies below the line
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show that sin ((pi)/(3))+((pi)/(6)) = sin[pi/3] + sin[pi/6] is NOT a true statement.
Top answer:
pi/3 + pi/6 = pi/2 sin pi/2 = 1 sin pi/6 + sin pi/3 is not 1
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True or False: sin(-85)=-sin(85)
I need to show my work, how do I do so?
Top answer:
sin -85 = sin (5 - 90) = sin5 cos90 - cos5 sin90 = -cos5 = -sin85
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Consider the function f(x)=sin(1/x)
Find a sequence of x-values that approach 0 such that sin (1/x)=0 sin (1/x)=1 sin (1/x)=-1 Is
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To find a sequence of x-values that approach 0 such that sin(1/x) equals 0, 1, or -1, we can first
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Show that sin(x+pi)=-sinx.
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Top answer:
in(x+pi)=sin x cos pi+cos x sin pi but cosPI=-1, sin PI=0 sin(x+PI)= -sinx
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Which of the following are true statements? Select all that apply. (1 point) Responses sin 67° = sin 42° cos 25° + cos 42°
Top answer:
- sin 67° = sin 42° cos 25° + cos 42° sin 25° - cos 67° = cos 41° cos 26° + sin 41° sin
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For the functions f(x) = sin x, show with the aid of the elementary formula sin^2 A = 1/2(1-cos 2A) that f(x+y) - f(x) = cos x
Top answer:
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if you go with the right substitution
∫[{(1-sin(x))/(1+sin(x))}{(2-sin(x))/(2+sin(x))}] dx plz show me solution
Top answer:
wow Just looking at the answer at
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Provide the identity. Show all proper work. 2 sin xcos^3x + 2 sin^3 xcosx = sin(2x)
Top answer:
2 sin x ∙ cos³x + 2 sin³x ∙ cosx = 2 sin x ∙ cos x ∙ cos²x + 2 sin x ∙ cos x ∙ sin²
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show that the equation 2x-1-sinx=0 has exactly one real root.
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If you view graphically the two equations f1(x)=sin(x) ....(1) f2(x)=2x-1 ....(2) it will be obvious
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[sin(b)+sin(2b)]/(1+cosb+sin(2b)=tanb
plz i need ur help prove for me show step
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If b=90 deg [1+0]/(1+0+0)=1 but tan 90 deg does not equal one. Therfore, the proof cannot exist, and
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