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Some Applications Of Trigonometry

Question
CBSEENMA10008006

In right-triangle ABC, right angled at B, if cotA space equals space 4 over 3. Show that fraction numerator cos squared straight A minus sin squared straight A over denominator cos space straight A end fraction equals fraction numerator 1 minus tan squared straight A over denominator secA end fraction.

Solution

Solution not provided.

Some More Questions From Some Applications of Trigonometry Chapter