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Anirudh Nigam

· started a discussion

· 1 Months ago

Please explain (Question: 274712.0 )

How cos and sin values are determined?

Question:

If 48 cos  θ     + 14 sin  θ    = 50, then find the value of sec  θ    – tan  θ   .

QuestionHindi:

यदि 48 cos  θ    + 14 sin  θ    = 50 हो तो sec  θ    – tan  θ    का मान क्या होगा?

Options:
A)

58    

B)

17    

C)

19    

D)

34    

Solution:

Ans: (d)

  

Sagar Sharma

· commented

· 1 Months ago

as cos^2 + sin^2 = 1 we can write this equation as cos.cos + sin.sin = 1 now compare the coefficient of the above equation with this equation u will get cos = 48/50 and sin = 14/50
hope its clear
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