Q )sin(pi-pi/4) which formula should we use?
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Answered by
0
pi =180
so sin (180/4)
sin 45=(1/2)^1/2
so one by root 2 is the answer
so sin (180/4)
sin 45=(1/2)^1/2
so one by root 2 is the answer
Answered by
1
sin (A--B)
sin ( π--π/4)
= cos(π) cos(π/4) -- sin(π) sin(π/4)
= -- 1/√2 -- 0
= -- 1/√2
sin ( π--π/4)
= cos(π) cos(π/4) -- sin(π) sin(π/4)
= -- 1/√2 -- 0
= -- 1/√2
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