Find x from :3x=sin45°×cos45°+sin30°
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2
sin 3x=sin45*cos45+sin30
sin3x=1/√2*1/√2+1/2
sin3x=1/2+1/2
sin3x=1
sin3x=sin90°
3x=90°
x=30°
Hope this helped you
sin3x=1/√2*1/√2+1/2
sin3x=1/2+1/2
sin3x=1
sin3x=sin90°
3x=90°
x=30°
Hope this helped you
Answered by
2
Hi friend ,
3x = sin45°×cos45° +sin30°
3x = 1/√2 × 1/√2 + 1/2
3x = 1/2+1/2
3x = 2/2
3x = sin 90°
x = 30°
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Hope this helped u...
3x = sin45°×cos45° +sin30°
3x = 1/√2 × 1/√2 + 1/2
3x = 1/2+1/2
3x = 2/2
3x = sin 90°
x = 30°
=====================
Hope this helped u...
amanjyotishi:
hello dost,
here,3x =sin 45* cos 45+sin 30
3x=1/2+1/2
3x=1
since,3x=sin 90
therefore,x=90
no, here, sin3x =sin 90°
cancelling sin both sides
3x= 90°
and hence x=90/3 or 30°
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