Question

Cos²35+cos²55 ka maan

Answer 1

Answer:

cos²35 + cos²55

= cos²35 + sin²(90 - 55)

= cos² 35 + sin² 35

= 1.

$as \: \: \: \: \: \: { \sin( \alpha ) }^{2} + { \cos( \alpha ) }^{2} = 1$

Answer 2

Answer:

${cos}^{2} 35^{\circ} \: + {cos}^{2} 55^{\circ}$

$= {cos}^{2} 35^{\circ} \: + {cos}^{2} (90^{\circ} - 35^{\circ})$

$= {cos}^{2} 35^{\circ} + {sin}^{2} 35^{\circ}$

$= 1$

Please Mark it Brainliest