Math, asked by harshu123456, 7 months ago

plzzzzzz.................39​

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Answers

Answered by 07861239sahil
0

Answer:

gddgffjjgdddiodsfustihdsikvsfihd ggerygssetgddtuhdftyyhfewtukgdruhfeuobdulgseeryggghsshjgddfjjhhghj

ggkkkgdrorsobsihduje

Answered by gayathrikoritala
0

here sinx=-3/5,cosx=-4/5,tanx=3/4,cotx=4/3

cosx=1-2cos²x/2

-4/5=1-2cos²x/2

-4/5-1=2cos²x/2

-9/5=2cos²x/2

-9/10=cos²x/2

cosx/2=√9/10

sinx=2×sin x/2× cosx/2

-3/5=2×sinx/2×√9/10

-3/10×√10/9=sinx/2

-3/√10×9=sinx/2

-27/√10=sinx/2

tanx/2=(sinx/2)/(cosx/2)

tanx/2=(-27/√10)/√9/√10

tanx/2=-27/√9

finally sinx/2=-27/√10,tanx/2=-27/√9,cosx/2=√9/√10

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