Question
cos (sec-1 x) is equal to –
Solution
=> sec-1 x = cos-1 (1/x) => cos (sec-1 x) = cos (cos-1 1/x) => 1/x
If ‘%’ means (÷), ‘&’ means (+), ‘$’ means (×), and ‘@’ means (-), then what is the value of the expression:
25 & 35 % 7 @ 14 $...
Which two signs need to be interchanged to make the following equation correct?
62 – 12 × 60 ÷ 12 + 30 = 92
In a certain code language, '+' represents '-', '-' represents 'x', 'x' represents '÷' and '÷' represents '+'. Find out the answer to the following qu...
Which two digits and signs can be interchanged so as to balance the given equation?
406- 102 + 128 X 5 ÷ 58 = 545
If 'A > B' means 'A + B', 'A < B' means 'A X B', 'A ≥ B' means 'A - B' and 'A ≤ B' means 'A ÷ B', then what is the value of the expression '112 ≤...
- If ‘%’ means (÷), ‘&’ means (+), ‘$’ means (×), and ‘@’ means (-), then what is the value of the expression:
42 & 54 % 9 @ 11 $ 3 Which two signs should be interchanged to make the below equation mathematically correct?
9 ÷ 3 + 6 – 6 × 2 = 30
A recent survey of married couples in Indian metro cities showed that 20% of the couples have only one child, 45% of the remaining couples have two chil...
If + means ÷, × means +, ÷ means – and – means ×, then find the value of 48 × 35 – 5 + 7 ÷ 7 – 9
...Select the combination of numbers that when placed sequentially in the blanks of the given series will complete the series.
r s _ u _ w x _ z _ s...
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