Sin (2π/3) =?

'sin^2(pi/6)+cos^2(pi/3)- tan^2(pi/4)=-1/2'

Solve | Sin π/2 | using calculator (Casio fx-991MS)

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How To Use a Calculator To Calculate The Exact Value of Cos Pi over 3 | tan(pi/3)

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Find trigonometry angle cos⁡(2π/3) = ?

Prove that: sin ^2π/6+cos ^2π/3-tan ^2π/4=-1/2 LHS = sin ^2π/6+cos ^2π/3-tan ^2π/4 = (1/2)^2+(1...

FIND THE VALUES OF TRIGONOMETRIC FUNCTIONS || TAN (19PI/3) || SIN(-11PI/3)

Prove sin^2(pi/6) + cos^2(pi/3) - tan^2(pi /4) = -1/2

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Solve | sin 30 degree | using calculator (Casio fx-991MS)

find the value of sin(2pi/3) || sin(2π/3) || sin(120°)

Casio calculator not displaying a fraction

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Solve | Sin π/6 | using calculator (Casio fx-991MS)

Obtaining a fraction instead of obtaining decimal number in fx-991ES PLUS calculator

The value of cos^2⁡〖π/16+cos^2⁡〖3π/16+cos^2⁡〖5π/16+cos^2⁡〖7π/16〗 〗 〗 〗...👇

Casio scientific calculator fx-991ES fx-100AU PLUS 2nd edition self-test function "shift-7-on"