Question
Statements: M $ K; K & N, N % R, R @ W
Conclusions:     I. W & K        II. K & W              III. M % R In the following questions, the symbols $, %, &, @ and # are used with the following meaning as illustrated below. A $ B means A is not smaller than B, A % B means A is not greater than B, A & B means A is neither smaller nor equal to B, A @ B means A is neither greater nor equal to B, A # B means A is neither smaller than nor greater than B.Solution
given statements: M $ K; K & N, N % R, R @ W After converting: M ≥ K, K > N, N ≤ R, R < W After combining: M ≥ K > N ≤ R < W Conclusion a → W & K → W > K There is no relation between W and K in the statement M ≥ K > N ≤ R < W so, it is not true. Conclusion b → K & W → K > W There is no relation between K and W in the statement M ≥ K > N ≤ R < W. So, it is not true. Conclusion c → M % R  → M ≤ R There is no relation between M and R in the statement M ≥ K > N ≤ R < W. So, it is not true.
- Calculate the value of sin120 o  + cos180 o  + tan225 o .
- If sin 2a = (7/9), then find the value of (sin a + cos a).
If sec A + tan A = 3 then the value of cot A is:
If cosx/siny = n and cosx/cosy = m, then the value of cos 2 y is:
1. m 2 /(m 2 Â + n 2 )
2. 1/(m ...The value of sec2 45˚ + 2 tan 135˚ is –
Find the value of the given trigonometric expression:
(sin 22°cos 68° + cos²22°) × sin 30° + (cos 60°tan 45°) × sec 60°
...
sin2 17˚ + sin2 19˚ + sin2 21˚ + sin2 23˚ + ……… + sin2 77˚ = ?
If tan θ + cot θ = 2 where 0 < θ < 90 ; find the value of tan30 θ + cot 29 θ.
If sec 4A = cosec (3A - 50°), where 4A and 3A are acute angles, find the value of A + 75.