Question
sin2 7Ëš + sin2 9Ëš +
sin2 11Ëš + sin2 12Ëš + ……… + sin2 83Ëš = ?Solution
sin 2 7Ëš + sin 2 9Ëš + sin 2 11Ëš + sin 2 12Ëš + ……… + sin 2 83Ëš = (sin2 7Ëš + sin2 83Ëš)+(sin2 9Ëš + sin2 81Ëš) + .…. + (sin2 43Ëš + sin2 47Ëš) + sin2 45Ëš = (sin2 7Ëš + cos2 7Ëš) + (sin2 9Ëš + cos2 9Ëš) + .…. + (sin2 43Ëš + cos2 43Ëš) + sin2 45Ëš {As sin (90Ëš - θ) = cos θ} = (1)+(1) + .…. upto 19 times + sin2 45Ëš { As sin 2 θ + cos 2 θ= 1} = 19 + sin2 45Ëš {As there are 19 odd numbers from 7 to 43}. = 19 + (1/√2)2 {As sin 45Ëš =1/√2 } = 19 + 0.5 = 19.5 ` ` ` ` ` ` ` ` ` ` ` `
We can say that the business is in profit, when:
Under Ind AS, impairment of an asset requires:
How much percentage of salary is allowed for exemption in House rent allowance Section 10(13A) in case of metro city?
Under Accounting Standard 5 on Net Profit or Loss for the period, prior period items and changes in accounting policies must be disclosed separately. Wh...
What best describes a Bank Guarantee?
Donation given by any person except by Indian company to Political Parties or Electoral Trust is allowed under which section?
There can be variety of budget. Name the budget which relates to a particular function of the business.
How many digits are there in a MMID code used for money transfer through mobile devices?
A budget that changes with the level of activity is a:
According to the capital-asset pricing model (CAPM), a security's required return is equal to the risk-free rate plus a premium. This premium is _____
Relevant for Exams:
