sec theta + tan theta is equal to 2+ sqrt 5 then find sin theta + cos theta
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Let theta = x
secx=5^1/2
cos x=1/secx= 1/(5)^1/2 or (1/5).(5)^1/2
sinx= +/-(1-cos^2x)^1/2 = +/-(1–1/5)^1/2=+/-2/(5)^1/2 or +/-(2/5).(5)^1/2
tan x =+/-{2/(5)^1/2}/{1/(5)^1/2} = +/- 2 ,Answer.
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Step-by-step explanation:
same as above answer....
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