ICSE Class 10 Answered
tansquareA-tansquraB= sinsqureA-sinsquareB/cossquareA-cossquareB
Asked by m_shailander | 17 Feb, 2019, 15:14: PM
![Your space identity space should space be colon
tan squared straight A minus tan squared straight B equals fraction numerator sin squared straight A minus sin squared straight B over denominator cos squared straight A. cos squared straight B end fraction
tan squared straight A minus tan squared straight B equals sec squared straight A space minus space 1 space minus open parentheses sec squared straight B minus 1 close parentheses
equals sec squared straight A minus sec squared straight B
equals fraction numerator 1 over denominator cos squared straight A end fraction minus fraction numerator 1 over denominator cos squared straight B end fraction
equals fraction numerator cos squared straight B minus cos squared straight A over denominator cos squared straight A. cos squared straight B end fraction
equals fraction numerator 1 minus sin squared straight B minus 1 plus sin squared straight A over denominator cos squared straight A. cos squared straight B end fraction
equals fraction numerator sin squared straight A minus sin squared straight B over denominator cos squared straight A. cos squared straight B end fraction](https://images.topperlearning.com/topper/tinymce/cache/35dfa40ffffb38079f2b7ae1051dcb40.png)
Answered by Arun | 18 Feb, 2019, 09:42: AM
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