The base of an isosceles triangle is 6 cm and its perimeter is 16 cm. Its area is
(A)
(B)
(C)
(D)
If a + b + c = 0, then a3+b3+c3 is equal to
(A) a + b + c
(B) abc
(C) 2abc
(D) 3abc
The value of sec4 A (1 – sin4A) – 2tan2A is:
(A)
(B) 0
(C) 2
(D) 1
1, 3, 5, 7, ………total average of 25th number is:
(A) 125
(B) 25
(C) 625
(D) 50
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