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1. secθ+tanθ=75,secθ-tanθ

  • A. 57
  • B. 57
  • C. 57
  • D. 57

Answer: Option A

Explanation:

we know, sec2-tan2=1

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

=> 7/5 (sec-tan)=1

=> sec-tan= 1- 7/5

=> sec-tan=5/7

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