📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!


    ⚡ Month End Offer - Flat 52% Off On All Courses! Enroll Now ⚡
    00:00:00 AM Left

    Question

    If ∆ABC is right angled at C, then the value of cos

    (A+B) is
    A 1 Correct Answer Incorrect Answer
    B 1/2 Correct Answer Incorrect Answer
    C √3/2 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    We are given a right-angled triangle △ABC where C=90⁰. Angle Sum Property In any triangle = A+B+C=180⁰ Since C=90 , we get: A+B=90⁰ Find cos(A+B) cos(90)⁰ = 0

    Practice Next
    ask-question