Question
If β$β means β+β, β#β means β-β,
β*β means βΓβ and β@β means βΓ·β, then what is the value of the given expression? 42 $ 18 # (6 * 4 $ 16) @ 8 # 5Solution
Given expression: 42 $ 18 # (6 * 4 $ 16) @ 8 # 5 After replacing the symbols with mathematical signs, we get: 42 + 18 β (6 Γ 4 + 16) Γ· 8 β 5 42 + 18 β (24 + 16) Γ· 8 β 5 42 + 18 β (40) Γ· 8 β 5 42 + 18 β 5 β 5 60 β 10 = 50
β PQR is right-angled at Q. If β R = 60ΒΊ, then find the value of cosec P.
If tanΒ² 45Β°- cosΒ² 60Β° x sin 45Β° cos 45Β° cot 30Β°, then find the value of 'x'.
The value of (3tan10°-tan³10°)/(1-3tan²10°) is equal to
- If sin (4A β B) = (β2/2) and cos (A + B) = (β2/2), where 0Β° < A, B < 90Β°, then find the value of βAβ.
sin2 7 Β° + sin2 8 Β° + sin2 9 Β° + sin2 10 Β° + β¦β¦β¦ + sin2 83 Β° = ?
...If cos1.5B = sin(B + 5Β°), then find the measure of 'B'.
- If sin(A + B) = 1/2 and cos(A + 2B) = β3/2, where 0Β° < A, B < 90Β°, then find the value of tan(2A).

cos (sec-1 x) is equal to β
If A + B = 450 , then the value of 2(1 + tanA) (1 + tanB) is: