Question

यदि sin 42digree =a तथा cos42digree=b तो निम्नलिखित मै कौन सा कथन सत्य है । (a ) 1-a2=b2 ( b ) 1+a2=b2 (c) a2+b2 =1( d) a2 -1=b2​

Answer 1

Step-by-step explanation:

यदि sin 42digree =a तथा cos42digree=b तो निम्नलिखित मै कौन सा कथन सत्य है । (a ) 1-a2=b2 ( b ) 1+a2=b2 (c) a2+b2 =1( d) a2 -1=b2 - did not match any documents.

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Answer 2

Answer:

option c is correct one

Step-by-step explanation:

as we know sin^2A + cos^2A = 1

hence square the value of a and b and add them.