08 : Trigonometry

01. 2 cos (𝛉−𝝅/𝟐)+3 sin (𝛉+𝝅/𝟐)- (3 sin𝛉 + 2 cos 𝛉) = ?

  • 1

    Cos𝛉 – sin𝛉

  • 2

    Sin𝛉 – cos𝛉

  • 3

    Sin𝛉 + cos𝛉
     

  • 4

    Cot𝛉 – tan𝛉

04. यदि (a2-b2) sin𝛉 + 2ab Cos𝛉 = a2+b2 हो, तो tan𝛉  का मान क्या होगा -

  • 1

    (𝒂𝟐+𝒃𝟐)/𝟐𝒂𝒃

  • 2

    (𝒂𝟐+𝒃𝟐)/(𝒂𝟐−𝒃𝟐 )

  • 3

    (𝒂𝟐−𝒃𝟐)/(𝒂𝟐+𝒃𝟐 )

  • 4

    (𝒂𝟐−𝒃𝟐)/𝟐𝒂𝒃

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