Question
If sec θ + tan θ = m(> 1), then the value of sin θ is
(0° < θ < 90°)Solution
sec θ + tan θ = m(> 1) let θ = 45° √2 + 1 = m m2 = 3 + 2√2 m2 − 1 = 3 + 2√2 − 1 2 + 2√2 m2 + 1 = 3 + 2√2 + 1 2 + 2√2 m2 −1 / m2+1 = (2+2√2) / (2+2√2) = 1/ √2 = sinθ
564.932 + 849.029 – 425.08 = 612.095 + ?
999.99 + 99.99 + 99= ?
A sum of ₹60,000 is invested at a compound interest rate of 'x%' per annum, compounded annually, and grows to ₹75,264 in 2 ye...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
³√? × 33.97 + 59.99 × 28.9 – 48.98 × 21.42 = 1085.344
1279.98 ÷ 40.48 × 10.12 = ? × 2.16
(124.901) × (11.93) + 219.95 = ? + 114.891 × 13.90
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
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