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1. 45 : 9 → 4 + 5 = 9 2. 29 : 11 → 2 + 9 = 11 3. 67 : 13 → 6 + 7 = 13 4. 89 : 15 → 8 + 9 = 17
If secθ + tanθ = 3+√10, then the value of sinθ+cosθ is
If sec(2A + B) = 2 and cos(A + B) = (1/√2) , find the value of {sec 2B + tan (A + B) } given that 0o < A, B < 90o
If P, Q, R, S are the vertex of a cyclic quadrilateral. Find the value of
`1/sec p` +`1/sec q` +`1/sec r` +`1/sec s`
...Find the simplified value of the following expression if a = 30o
[(sin2a + cos2a} ÷ seca × sina ÷ cosa]
...Calculate the value of sec75o
If sin (2x + 50) o = cos (2y - 50) o, such that, 0o < x + y < 90o, then find the value of tan(x + y) .
If tan θ + cot θ = 2 where 0 < θ < 90 ; find the value of tan30 θ + cot 29 θ.