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Impregnable SVDK

· started a discussion

· 1 Months ago

Theta (Question: 252291.0 )

you can put theta=30 degree

Question:
If x sin \(\theta\) = y cos \(\theta\) =  \(\cfrac{2z\ tan\ \theta}{1-tan^2\ \theta}\) , then what is 4z2(x2 + y2) equal to?
Options:
A) (x2 + y2)3
B) (x2 – y2)3
C) (x2 – y2)2
D) (x2 + y2)2
Solution:

Ans: (c) 

Rahul Bharadwaj

· commented

· 1 Months ago

If u put theta 60 then it will match option 3

Sumit

· commented

· 1 Months ago

thanks bro
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