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10th Class Mathematics Introduction to Trigonometry Question Bank Trigonometry

  • question_answer
    \[{{\left( \text{1}-\text{sinA}+\text{cosA} \right)}^{\text{2}}}\]is equal to

    A)  \[\text{2}\left( \text{1}+\text{cosA} \right)\left( \text{1}-\text{cosA} \right)\]

    B)  \[\text{2}\left( \text{l}-\text{sinA} \right)\left( \text{l}+\text{cosA} \right)\]  

    C)  \[\text{2}\left( \text{l}+\text{sinA} \right)\left( \text{l}-\text{sin A} \right)\]

    D) \[\text{2}\left( \text{l}+\text{sinA} \right)\left( \text{l}-\text{cosA} \right)\]

    Correct Answer: B

    Solution :

    Not available


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