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505

Q:

x cosθ-y sinθ=2 और x sinθ + ycosθ = 4  में से θ हटाने पर कोनसा कथन सत्य होगा ?

  • 1

    x2+y2=20

  • 2

    3x2+y2=20

  • 3

    x2-y2=20

  • 4

    3x2-y2=10

  • Show Answer
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Answer : 1. "

x2+y2=20

"

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