In triangle abc anglec=90,bc+ca=23cm and bc-ca=7cm find sinA and tanB
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bc+ca+bc-ca=23+7. {Adding eq}
2bc=30
bc=15
ca=23-15=8
ab=17
15/17=sina
TanB=8/5
2bc=30
bc=15
ca=23-15=8
ab=17
15/17=sina
TanB=8/5
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