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Class 10 · Mathematics · Medium
→If (S_{25}=1225) and (S_{24}=1128), what is the (25)th term?
Class 12 · Mathematics · Medium
→What is the maximum value of 5 sin x − 12 cos x?
Class 12 · Mathematics · Medium
→If sin x = 1/2, what are the values of x in 0 ≤ x < 2π?
Class 12 · Mathematics · Easy
→For which values of x is cosec x not defined?
Class 12 · Mathematics · Medium
→What is the value of sin 75° cos 15° − cos 75° sin 15°?
Class 12 · Mathematics · Medium
→If tan θ + cot θ = 4, what is the value of tan² θ + cot² θ?
Class 9 · Mathematics · Medium
→If Sₙ + Sₙ₋₁ = 12544 and Sₙ − Sₙ₋₁ = 112, what is the value of Sₙ?
Class 9 · Mathematics · Expert
→What is the ratio of the sums of the first (128) and first (64) natural numbers?
Class 9 · Mathematics · Expert
→What is the value of (S_{120}-S_{80}+S_{40})?
Class 9 · Mathematics · Expert
→What is the sum of natural numbers from (75) to (125)?
Class 12 · Mathematics · Easy
→If tan θ=3, what is the value of sin θ/cos θ?
Class 9 · Mathematics · Expert
→A student added numbers from (1) to (175) and then subtracted the sum from (1) to (125). What will be the result?
Class 9 · Mathematics · Expert
→Find the sum of natural numbers from (126) to (175).
Class 9 · Mathematics · Hard
→If S_n+S_(n−1)=4212 and S_n−S_(n−1)=65, what is the value of S_n?
Class 9 · Mathematics · Medium
→What is the sum of the natural numbers from 61 to 125?
Class 12 · Mathematics · Medium
→What is the simplified value of (sin x − sin^3 x) / cos^2 x?
Class 9 · Mathematics · Medium
→If Sₙ − Sₙ₋₁ = 126 and Sₘ = 1953, what is n − m, where Sₖ = 1 + 2 + ⋯ + k?
Class 9 · Mathematics · Medium
→What is the sum of \(121+122+123+\cdots+160\)?
Class 9 · Mathematics · Hard
→What is the sum of (58+59+60+\cdots+112)?
Class 12 · Mathematics · Medium
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