Question

cosec A =15/7and A+B=90 find the value of sec B

Answer 1

$coseca = 15 \div 7 \\ sina = 7 \div 15 \\ cosa = \sqrt{1 - {(7 \div 15)}^{2} } \\ cosa = \sqrt{176} \div 15 \\ b = 90 - a \\ cosb = cosa \\ secb = seca = (15 \div \sqrt{176} )$
mark as brainliest if helped