if sec 4A = cosec (A-20 degree) , find A
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sec 4@ = cosec ( @-20)
cosec ( 90-4@) = cosec (@-20)
90-4@ = @-20
5@ = 110°
@ = 22°
cosec ( 90-4@) = cosec (@-20)
90-4@ = @-20
5@ = 110°
@ = 22°
drashti5:
correct
Answered by
1
we know that sec (90-A)=cosecA
thus, sec4A=sec (90-A+20)
cancel sec from both sides,
we get--- 4A=90-A+20
》》5A=110
》》A=22 degree
》》■□HOPE IT HELP U□■《《
thus, sec4A=sec (90-A+20)
cancel sec from both sides,
we get--- 4A=90-A+20
》》5A=110
》》A=22 degree
》》■□HOPE IT HELP U□■《《
90+20=110
90+20 is not = 120
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