In triangleABC rightangled at C, angle A is equal to angle B,find the value of SinASinB+CosACosB.
Answers
Answered by
0
Step-by-step explanation:
sin45 × sin45 +cos45 × cos45
= 1/√2 × 1/√2 + 1/√2 × 1/√2
= 1/2×1/2
= 1/4
Similar questions