Question
If sin 23° = `12/13` , then tan
67° = ?Solution
sin 23° = `12/13` = perpendicular/hypotenuse So perpendicular = 12 & hypotenuse = 13 so base = 5 But for angle 67° which is complimentary of 23°, perpendicular = 5 & base =12. So tan 67° = perpendicular/base = `5/12` Alternate Method sin 23° = `12/13` or cos (90°-23°) = `12/13` or cos 67° = `12/13` -----(1) Squaring on both sides, we will get cos2 67° = `144/169` or (1 - sin2 67°) = `144/169` or sin2 67° = 1 - `144/169` = `25/169` = `(5/13)^2` So sin 67° = `5/13` ----(2) Hence tan 67° = sin67°/cos67° = `(5/13)/(12/13)` = `5/12` ` ` ` ` ` ` ` ` ` ` ` `
An insured house valued at ₹40 lakh is insured for ₹20 lakh. A fire causes ₹10 lakh damage. What will be the claim amount under the average clause?
Insurer constructs a new data center over 18 months financed from a general borrowing pool. Capitalization of borrowing costs begins when?
Which country will host the 2027 World Athletics Championships?
In the proposed budget (2017-2018), MAT credit to be carried forward to:
A company values inventory at lower of cost and NRV. Cost per unit = ₹150, NRV per unit = ₹140. For 5,000 units, calculate value as per Ind AS 2.
The purpose of preparing final accounts is to ascertain         .
Which of the following represents the second method of calculating Maximum Permissible Bank Finance (MPBF) as recommended by the Tandon Committee?
X Ltd. is merged with Y Ltd. under the pooling of interest method. The reserves and surplus of X Ltd. amount to ₹10 lakhs. How will this be treated in...
If a government grant is received but later becomes refundable, how should it be accounted?Â
A budget that outlines the planned expenditures for major capital assets like machinery and buildings is the:
Relevant for Exams:
