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Question

Find the value of:

sin2300cos2450+4tan2300+12sin2900+12cot2600

A
2
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B
3
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C
4
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D
178
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Solution

The correct option is D 178
sin2300cos2450+4tan2300+12sin2900+12cot2600

=(12)2×(12)2+4×(13)2+12×(1)2+12×(13)2,

=14×12+4×13+12+12×13

=18+43+12+16

=3+32+12+424

=178

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