CBSE Class 10 Answered
Trigonometry
Asked by | 01 Jul, 2008, 11:54: PM
Expert Answer
tan 7° .tan 60°.tan 23°.tan 67°.tan 83°
=tan (90-83). tan 83 .tan 60. tan (90-67). tan 67
= cot 83. tan 83. tan 60. cot 67. tan 67
= 1/tan 83. tan 83. tan 60. 1/tan 67. tan 67
= tan 60 = 3
Answered by | 04 Jul, 2008, 12:58: AM
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