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Sec3A=cosec(A-10) where 3A is an acute angle so find the value of A |
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Answer» Sec3A=Cosec(A-10)Sec3A=Sec(100-A) 3A=100-A4A=100A=25.............(ans) A is 25degree.sec(3A)=cosec (A-10)sec3A =sec(90-{A-10)}3A=90+10-A3A+A=1004A=100A=100/4A=25 |
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