Expain the answer of tan18.tan36.tan42.tan54
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Here is your answer ⤵️⤵️⤵️⤵️
tan 18.tan36.tan42.tan54
= tan18.tan42. tan36.tan54
= cot(90-18).tan42. cot(90-36).tan54
= cot42.tan42. cot54.tan54
= 1/tan42 x tan42 x 1/tan54 x tan54
= 1 x 1
= 1
HOPE IT HELPS YOU !!!!
tan 18.tan36.tan42.tan54
= tan18.tan42. tan36.tan54
= cot(90-18).tan42. cot(90-36).tan54
= cot42.tan42. cot54.tan54
= 1/tan42 x tan42 x 1/tan54 x tan54
= 1 x 1
= 1
HOPE IT HELPS YOU !!!!
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Answer:
0.29252668
Step-by-step explanation:
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