Mathematics, 26.07.2019 14:00 jojokeys
If sin 20 degree=a and cos20 degree=b then which of the following represents the correct value of sin 70 degree in terms of a and/or b? 1) a+b 2) a 3) b 4)a-b
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If sin 20 degree=a and cos20 degree=b then which of the following represents the correct value of si...
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