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@filifulu | |
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U r given that cos of =8/10. Without using math tables express in fraction form the value of (a)sin (b)tan (90 - ) |
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@fanking | 4 March 11 |
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using pythogoras theorem and SOHCAHTOA. We find that the trig cos of 8/10 we find that the hypotunis is 10 and the opposite side is 6 and the abjacent sid is 8. Therefore sin of = 6/10 = 3/5 |
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@portiap | 14 September 11 |
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tan(90-*)means tan is in d 1st quadrant.'.tan is positive.tan= opp/adj=6/8=3/4
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