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Subject: Trygonometry
Replies: 2 Views: 1578

filifulu 9.12.09 - 12:46pm
U r given that cos of =8/10. Without using math tables express in fraction form the value of (a)sin (b)tan (90 - ) *

fanking 4.03.11 - 08:32am
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 *

portiap 14.09.11 - 07:37pm
tan(90-*)means tan is in d 1st quadrant.'.tan is positive.tan= opp/adj=6/8=3/4 *

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