Math, asked by hindavi82, 11 months ago

यदि tan 2A = Cot(A - 18°), जहां 2A एक न्यूनकोण
है, तो A का मान ज्ञात कीजिए?​

Answers

Answered by Anonymous
3

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यदि tan 2A = Cot(A - 18°), जहां 2A एक न्यूनकोण

है, तो A का मान ज्ञात कीजिए?

\huge\underline{\underline\frak{AnSwEr: -}}

\longrightarrow 36°

Step-by-step explanation:

\longrightarrow tan 2A = Cot(A - 18°)

\longrightarrow Cot (90° - 2A) = Cot(A - 18°)

\longrightarrow दोनों पक्षों में तुलना करने पर

\longrightarrow 90° - 2A = A - 18°

\longrightarrow 90° + 18° = A + 2A

\longrightarrow 3A = 108°

\longrightarrow A = 108°/3

\longrightarrow A = 36°

Answered by bodakuntalacchanna
0

Answer:

Given that,

tan 2A= Cot(A-18°)

we know that cot (90-ø)=tanø

tan 2A=tan 18

tan cancelled on both sides.

2A=18

A=18/2

A=9

Hope it works.............................✌️✌️

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