Question

If SecA+TanA =7,find the value of SecA-TanA

Answer 1

____________ANSWER _________

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Given : SecA+TanA =7

To find : SecA-TanA

Find :

As we know that,

sec²A - tan²A = 1

(sec - tan)( sec + tan) = 1

(sec - tan )( 7) = 1

sec - tan = 1/7

Thus value of sec - tan is 1/7

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