Asked by kia
wha tis the exact value of sin 9pi/4
Answers
Answered by
bobpursley
add Subract 2PI
sin (9pi/4)==sin(9PI/4-8PI/4)=sin(Pi/4)
which you should have memorized as 1/2 sqrt2
sin (9pi/4)==sin(9PI/4-8PI/4)=sin(Pi/4)
which you should have memorized as 1/2 sqrt2
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