Mathematics
Taybabyy888
52

Find sin x/2, cos x/2, and tan x/2 from the given information.. cos x = −15/17, 180° < x < 270°. . sin x/2=. . cos x/2=. . tan x/2=

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(1) Answers
ElizbethLiddle208

so base on your question the possible answer to that kind of question and the solution are the following and i hope you will understand the formula and free to ask some questions if needed. 2cos2x2=1+cosx=1−1517=217,cos2x2=117 cosx2=−117−−√....(1) sinx2=117−−√,900,cosx2<0,tanx2<0 2sin2x2=1−cosx=1−−1517=3217,sinx2=417−−√.....(2) divide (2) by (1) and get the value of tan x/2

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