Question
If the first and second letters in the word
‘INFRASTRUCTURE’ were interchanged, also the third and fourth letters, the fifth and sixth letters, and so on. Which letter would be the eighth letter counting from your right?Solution
new word formed will be ‘NIRFSARTCUUTER’, from our right the eighth letter is R.
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If tan θ + cot θ = 5, then the value of tan2 θ + cot2 θ + 2tan2 60° is:
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