Math, asked by tejbalis936, 7 months ago

22
2. निम्नलिखित रेडियन माप के संगत डिग्री माप ज्ञात कीजिए (π=22/7
का प्रयोग करें):
(I)
11/16
(ii) -4
16
(iv)
7π/
6​

Answers

Answered by pratik1332
1

Step-by-step explanation:

given that sec a -1/ sec a +1 =1-cos a/ 1+ cos a

to prove LHS=RHS

now,

sec a = 1/cos a so, (1/cos a-1) / (1/cos a+ 1)

→( 1-cos al cos a) / (1+cos a /cos a)

\ 1-cos a / 1+cos a = RHS

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