The value of cosπ5cos2π5cos4π5cos8π5 will be
116
- 116
0
12
The function f(x) = sin(x) + cos(x) will be
an even function
an odd function
a constant function
None of these
If sinθ + cscθ = 2, then sin2θ + csc2θ is equal to
1
4
2
The maximum value of 5cosθ + 3cosθ + π3 + 3 is
10
- 10
14
If α and β are the solutions of atanθ + bsecθ = c, then tanα + β is equal
2aca2 - c2
2acc2 - a2
2aca2 + c2
If sin-1x5 + csc-154 = π2, then x is equal to
5
3
If sinAsinC = sinA - BsinB - C, then a2, b2, c2 are in
AP
GP
HP
If A = 60°, a = 5, b = 43 in ∆ABC, then B is equal to
30°
60°
90°
If y = sin2(x)cos2(x), then yn is equal to
4n8 . cos4x + nπ2
- 1n 4n8 . cos4x + nπ2
- 4n8 . cos4x + nπ2
None of the above
In a ∆ABC, if cot(A) cot(B) cot(C) > 0, then the triangle is
acute angled
right angled
obtuse angled
does not exist