P and Q are two observation posts on the same horizontal ground as the foot R
of a vertical pole RT. P is 2.5 km south
of R. Q is east of R and is on a bearing
of 065° from P. The angle of elevation
of T from P is 40°. Calculate, correct to
three significant figures:
i) sketch the diagram
ii) the distance RT
iii) the distance RO
iv) the distance PQ
v) the angle of elevation of T from Q.​

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation:

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step-by-step explanation: