Math, asked by rahulkumar8948, 1 year ago

yadi 8 vastuon ka Crime ulta Swasthya ke Vikraman ke barabar Hai To Hani pratishat hai

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Answered by chirag222

1

tan 70 can be written as tan(90-20)

which is equal to cot 20. cot 20×tan20 is zero

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