(1+ tan² A) + (1+1/ tan²A) First, we know that: 1 + tan² A= sec² A Also, for the second term: 1+1/ tan² A = 1 + cot² A = csc²A Now, adding these two expressions: sec² A + csc² A =(sin2A+cos2A)/Sin2A.cos2A =1/ ( Sin2A.cos2A) = 1/ (Sin2A (1- Sin2A) =1/ (Sin2A- Sin4A).
X1 and X2 represent number of occurrences of event A and 8 that follow Poisson distribution with mean rate λ1 and λ2 , If Y1 and Y2 are inter-occurre...
The interquartile range excludes ___ of the values.
For two items, tea (1 kg) and sugar (1 kg), the prices in the year 2019 were ₹100 and ₹50, respectively, whereas the prices in the year 2020 were â...
For ANOVA table
the F - statistics is:
Which of the following approaches does multiplicative model have for the component of Time series Secular trend (7). Seasonal variation (S), Cyclical f...
If the odds in favour of any random event A are 5 : 6, then the odds against the event are:
These seventh decile (D7) of data set 4, 3, 10, 9, 1 is
Following two statements are related to regression coefficient
(I) Independent of the change of origin
(II) Independent of the change of scale
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The mean deviation and coefficient of mean deviation of 5 observation are 1.2 and 0.4. If the sum of the first four terms is 10, then the fifth term is...
