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CBSE Class 10 Answered

evaluate
Asked by aruushi | 21 Apr, 2010, 02:55: PM
answered-by-expert Expert Answer

58 and 32 are complementary angles.

so

cos58=sin32

simly

sin 22=cos 68

tan 18=cot72

tan 35=cot 55

so

(tan18 tan72)(tan35 tan55)tan60

=(cot72tan72)(cot 55 tan 55) tan 60

=(1)(1) tan 60

=tan 60

put all these values in the expression and evaluate.

Answered by | 21 Apr, 2010, 10:13: PM
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