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Start learning 50% faster. Sign in now7sin²θ + 3cos²θ = 4sin²θ + 3sin²θ+3cos²θ = 4 4sin²θ + 3(sin²θ + cos²θ) = 4 4sin²θ + 3 (1) = 4 4sin²θ = 4 - 3 = 1 4sin²θ = 1 sin²θ = 1/4 → sinθ = 1/2 sin30° = 1/2 Hence, θ = 30°
The speeds of Avinash and Rahul are 70km/hr and 90km/hr. Initially Rahul is at a place P and Avinash is at a place Q. The distance between Rahul and Avi...
Which of the following statements is/are redundant to answer the above questions?
Aman, Sam and Kiran started working together but after 8 days Kiran left the job and 5 days before the completion of the work Sam also left then, In how...
P, Q and R can do piece of work in 48, 60 and 80 days respectively. All three began to work together but P and Q left 12 and 16 days respectively before...
Which of the following equations represents the number of day in which A and C working together can finish the same work?
Aman is how much % (less/more) efficient than Kiran?
What is the amount that Sumit spends annually on paying his loan instalments?
Which of the following equations represents the number of days in which A and B Working together can finish the same work?
A tank is filled by 3 pipes, second pipe take 10 hours more than first pipe and 10 hours less than third pipe to fill the tank alone. If second and thir...
A yearly payment to the servant is Rs 4080 and 1 journey ticket but servant leave the job after 7 months and receives Rs 1580 and 1 journey ticket, then...
