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1)If sin-1x + tan -1x = , then 2x2 + 1= 2)2 sin -1x = cos-1 (1 -2x2) is true for a. -1<=x<=1 b.-1<=x<=0 c.0<=x<=1 d.None of these 3)7)If sin-1x+sin-1y=2pi/3, cos-1x–cos-1y=pi/3, the number of ordered pairs ...
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the angles which a vector A = i+j+ 2 k makes with X Y Z axes respectively are a) 60° 60° 60° b) 45° 45° 45° c) 60° 60° 45° d) 45° 45° 60° ...
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Why is the value of log-3-27 ≠3? Because... log-3-27 = log-3(-3 * 9)=log-3-3 + log-39 = 1 + 2 = 3 ...
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IF x + y = 12, the maximum value of the product of xy is ...
