Mathematics WAEC Past Questions

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271

If sin x = cos 50^o, then x equals

A. 40^o
B. 45^o
C. 50^o
D. 90^o
E. 130^o

View Answer & Discuss (1) WAEC 1993

272

From a point on the edge of the sea, one ship is 24km away on a bearing S 50^oE and another ship is 7km away on a bearing S40^oW. How far apart are the ships?

A. 20km
B. 24km
C. 25km
D. 31km
E. 84km

View Answer & Discuss (2) WAEC 1993

273

Given that tan x = 5/12, what is the value of sin x + cos x ?

A. 5/13
B. 7/13
C. 12/13
D. 17/13
E. 5/12

View Answer & Discuss WAEC 1993

274

Cos 75^o has the same value as

A. cos 115^o
B. cos 255^o
C. cos 285^o
D. -sin165^o
E. -sin 255^o

View Answer & Discuss (2) WAEC 1993

275

If sin x = 12/13, where 0° < x < 90°, find the value of 1 - cos\(^2\)x

A. 25/169
B. 64/169
C. 105/169
D. 144/169
E. 8/13

View Answer & Discuss WAEC 1993

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Mathematics WAEC Past Questions

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