If $\sin A = \cos A$ (acute $A$ ), then $A = ?$

Dividing both sides by $\cos A$ gives $\tan A=1$ , whose acute solution is $A=45^\circ$ .

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এই অধ্যায়ের আরও প্রশ্ন

C-09-Q201If (acute ), then
C-09-Q202If (acute ), then
C-09-Q203For , the maximum value of is—
C-09-Q204In right , hypotenuse , . Then
C-09-Q205In the same triangle,
C-09-Q206In the same triangle,
C-09-Q207Given the same triangle, of the statements (i) , (ii) , (iii) , which are correct?
C-09-Q208In the same triangle,
C-09-Q209In the same triangle,
C-09-Q210With , , ( acute) and , then

60^\circ

6 0^{\circ}

d

90^\circ