10. Find the value:-
Please solve with process.
Solve every question.
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Step-by-step explanation:
(a) sin 45°.cos 45° - sin² 30°
=(1/root 2)(1/root 2) - (1/2)²
=1/2 - 1/4
=2/4 - 1/4
=2-1/4
=1/4
=0.25
(b) cos 30°.cos 45°-sin 30° sin 45°
= (1/2 × 1/root 2)- (root 3/2 ×1/root 2)
=(1/2root 2) - (root 3/2 root 2)
=(1-root3)/2 root 2
(c),(d) and (e) images I will send.
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